[HN Gopher] Sioyek is a PDF viewer with a focus on textbooks and...
       ___________________________________________________________________
        
       Sioyek is a PDF viewer with a focus on textbooks and research
       papers
        
       Author : simonpure
       Score  : 305 points
       Date   : 2024-05-09 21:28 UTC (1 days ago)
        
 (HTM) web link (github.com)
 (TXT) w3m dump (github.com)
        
       | pazimzadeh wrote:
       | Is there something like this for iPad? Reading research articles
       | is a painful process having to flip back and forth between text,
       | figures and references all the time
        
         | 0x38B wrote:
         | https://www.liquidtext.net/ is unique in its feature set and
         | use of gestures and stylus.
         | 
         | It's definitely worth trying.
        
         | sva_ wrote:
         | Did you try the Google Scholar PDF reader? It makes citations
         | clickable (sometimes)
        
         | k310 wrote:
         | I have used MarginNote and Notability in the past. Take a quick
         | look to see if they do what you want with PDF's.
        
         | samatman wrote:
         | I use GoodReader. I'm open to trying something else, but it has
         | folders, bookmarks, annotations, the basics. It lacks all of
         | the fancy stuff in the linked program, though.
         | 
         | PDF reading is the main use I have for a 13 iPad, and I do
         | enough of it that it justifies the device.
        
           | bluechair wrote:
           | Another vote for GoodReader
        
         | vzaliva wrote:
         | I work a lot with academic papers on iPad and PDF expert is the
         | best! https://pdfexpert.com/
        
         | ykonstant wrote:
         | The author is trying to make a version for Android and iOS. The
         | Android version is almost ready, but they're having trouble
         | with the iOS version.
        
       | behnamoh wrote:
       | I use this all the time. It's a nice app. Although some of the
       | features such as jumping to citations are available in Google
       | Scholar extension for Chrome. I just love the idea of vimifying
       | my apps. Before Sioyek, I used Karabiner to set j/k/etc. in macOS
       | Preview so I could navigate using vim keys, but that was a
       | tedious process and didn't have many features that Sioyek offers.
       | Also, I use a solarized background color for PDFs to avoid eye
       | strain, and the app supports night mode even for the graphs in
       | PDFs!
       | 
       | Some gripes with this app:
       | 
       | - There's an extension that lets you view PDFs in two columns
       | (panels) side by side. But that literally changes the actual PDF
       | files!
       | 
       | - Plugins are generally challenging to install. I found a
       | workaround and reported it, but IDK if the author took that
       | feedback to improve the app.
       | 
       | - To my knowledge, the app stores its configs in the Applications
       | directory of the app. It'd be nicer to have them in ~/.config.
       | 
       | - The feature to quickly open files in a directory doesn't work
       | for cloud drives (including iCloud).
        
         | lugu wrote:
         | +1 for the complexity to install extensions.
         | 
         | I really can't remember the name sioyek so I made it an alias
         | to xpdf.
        
           | mistrial9 wrote:
           | oohh thats not lucky.. established toolset named the same
        
         | hexomancer wrote:
         | Sioyek developer here.
         | 
         | > - There's an extension that lets you view PDFs in two columns
         | (panels) side by side. But that literally changes the actual
         | PDF files!
         | 
         | We have added native two-panel mode in development branch.
         | 
         | > - Plugins are generally challenging to install. I found a
         | workaround and reported it, but IDK if the author took that
         | feedback to improve the app.
         | 
         | In the development branch we have added support for native
         | javascript extensions (with no external dependencies because we
         | use Qt's internal js engine) which should be a lot easier to
         | work with
         | 
         | > - To my knowledge, the app stores its configs in the
         | Applications directory of the app. It'd be nicer to have them
         | in ~/.config.
         | 
         | Also I think in the development branch you can use ~/.config, I
         | am not 100% sure though.
        
       | ufo wrote:
       | Does the table of contents work if the pdf doesn't come with a
       | table of contents? (That's something I always wished my pdf
       | reader could do)
        
         | jigneshdarji91 wrote:
         | Yes
         | 
         | > If set and the file doesn't have a table of contents, we use
         | heuristic methods to create a table of contents. You can use
         | max_created_toc_size to prevent creating very large table of
         | contents.
         | 
         | https://sioyek-documentation.readthedocs.io/en/latest/config...
        
         | isotypic wrote:
         | Sortof - sioyek will parse the text and attempt to create a
         | table of contents (this does not modify the base pdf), but the
         | accuracy/usefulness varies. For papers I have found it works
         | reasonably well, just sometimes misses a few sections or
         | includes a few junk entries. For textbooks, especially ones
         | with heavy math typesetting, there are too many junk/missing
         | entries a lot of the time in my experience.
         | 
         | For papers or for textbooks I only need a small subset of, I
         | find the autogenerated table of contents + bookmarks is
         | typically sufficient. For other cases I like to use pdf.tocgen
         | (https://github.com/Krasjet/pdf.tocgen) to semi-manually
         | generate a correct table of contents.
        
           | ufo wrote:
           | Thanks, I'll look into both!
        
         | emmelaich wrote:
         | The website says yes: https://sioyek.info/
         | 
         | Link should be to the website imho.
        
       | burgerrito wrote:
       | Such a good PDF viewer.
       | 
       | My favorite feature from this program that doesn't exist in any
       | other PDF reader (AFAIK) is visual mark mode, where it highlight
       | each line you read. Very good to reduce eye strain
        
         | anthk wrote:
         | With MUPDF I just change the background colour to something
         | else:                     mupdf -C "#FFFFC0" file.pdf
        
           | mkl wrote:
           | That's completely different. See "Visual Mark" here:
           | https://sioyek-
           | documentation.readthedocs.io/en/latest/usage....
        
             | anthk wrote:
             | I know, but that was a hint on reducing the visual fatigue.
        
       | generationP wrote:
       | Is it good at digesting huge lists of PDFs (say, 100 000)?
        
         | jigneshdarji91 wrote:
         | From what I understand, there's no bulk import or open dir
         | feature.
        
       | philips wrote:
       | I recently started using an eink Supernote device in A5 size and
       | it is really change the way I interact with PDFs. The best part
       | is the software is native PDF highlighting and commenting and
       | leave comments using handwriting recognition.
       | 
       | Unrelated to PDF I built a Supernote Obsidian plugin too.
       | 
       | https://github.com/philips/supernote-obsidian-plugin
        
         | wonger_ wrote:
         | What else about the Supernote changed the way you interact with
         | PDFs, besides highlighting and handwritten comments? Does the
         | form factor make a big difference?
         | 
         | Asking out of curiosity since I've been eyeing eink tablets for
         | a while.
        
           | philips wrote:
           | The main thing is reading long form PDFs doesn't feel like a
           | chore because it was hard to get comfy and just read without
           | printing. And frankly I am not always near my printer when a
           | paper comes up I want to read. A laptop or display just
           | doesn't work for me. Also, unlike print outs I can have
           | everything just in my bag at all times.
           | 
           | The supernote is light and the right size so reading lying
           | down, at the couch, or sitting on the ground works for me.
        
         | relyks wrote:
         | What made you choose the Supernote over the Remarkable?
        
           | BlueTemplar wrote:
           | Seems to be much better at notetaking, as well as not as
           | locked down ?
           | 
           | https://ewritable.com/best-e-ink-
           | tablets/#Best_Dedicated_Not...
           | 
           | Myself, I just bought the Note Air 3C a few hours ago - I've
           | literally waited a decade for color to show up !
           | 
           | Maybe in yet another decade something GAFAM-free, like
           | PineNote, will be viable, sigh...
        
           | philips wrote:
           | I liked that their new hardware is repairable. They seem
           | focused on making their entire product work offline too.
        
         | fuzztester wrote:
         | How do Supernote devices compare to Kobo devices that were
         | mentioned here recently?
        
       | drwu wrote:
       | Sioyek has nice features, however, it was quite buggy. Fixing
       | bugs and writing tests may take a lot of efforts.
        
       | throwaway425933 wrote:
       | Tangentially related. does anyone know a good pdf reader with LLM
       | based search integrated? Suppose I want search for "cities in
       | USA", in the document, it should show all occurences new york,
       | los angeles and chicago, for example.
        
         | indit wrote:
         | [PDFgear](https://www.pdfgear.com/) has LLM integrated, it is
         | currently free.
        
           | throwaway425933 wrote:
           | Appreciate the response!
        
       | Physkal wrote:
       | This is desktop only, correct? Personally I've been using Librera
       | for my textbooks, would love to try some other recommendations.
        
         | hkmaxpro wrote:
         | They are working on an Android version that you can build from
         | their development branch:
         | 
         | https://github.com/ahrm/sioyek/issues/840
        
       | pyromaker wrote:
       | I took a bit more collaborative approach to reading and
       | discussing research papers (https://www.scholars.io or
       | https://app.scholars.io) and allow people to annotate, comment
       | and collaborate on research.
        
       | sebmellen wrote:
       | Seems like an abandoned project -- the latest commit to main was
       | two years ago!
        
         | hkmaxpro wrote:
         | Their development branch is very active (last commit 3 weeks
         | ago):
         | 
         | https://github.com/ahrm/sioyek/tree/development
        
         | z2h-a6n wrote:
         | Are you perhaps referring to the latest release (which was 1.4
         | years ago) rather than the latest commit on main (which was 41
         | days ago)?
        
         | hexomancer wrote:
         | Sioyek developer here. As others have mentioned the development
         | branch is fairly active. I also have my own private branch
         | which I have not published yet until it is more stable, the
         | last commit in my private branch is yesterday (6 commits
         | actually).
        
           | sebmellen wrote:
           | Awesome
        
       | felipefar wrote:
       | I've been working on having my notes better integrated with the
       | content I read. I try to gather references to where an idea is
       | developed/contradicted in the literature, or just collect good
       | ideas.
       | 
       | Cahier (https://getcahier.com), the software I'm developing,
       | supports creating cards with references to passages in the PDFs
       | read.
       | 
       | It's exciting to see the developments that are being made in this
       | area in the past few years.
        
         | angleofrepose wrote:
         | Could you expand on what you see as exciting developments? I'll
         | have to check out the op post link as well as yours and others
         | in the thread.
         | 
         | It's been a few years since I seriously looked at options for
         | my personal use, but I remember being quite disappointed in the
         | options I found. Zotero and org-noter seemed two of the best
         | (though in completely different ways) pieces of software I
         | could find regarding reading or organizing pdfs. I trialed
         | OneNote for a year and liked it in the moment, but zero support
         | for navigation or discovery or review of information make it
         | untenable for building a knowledge base or doing literature
         | review.
         | 
         | I imagine that software which makes reading and connecting
         | document information (in any form: pdf, html, video or other)
         | could be so much better than what I use daily.
        
           | felipefar wrote:
           | 1) The post-roam research note-taking apps (Obsidian, logseq)
           | have shown the usefulness of creating notes with links, back-
           | links and databases.
           | 
           | 2) Document editor apps (Notion, Craft) have popularized the
           | concept of documents as a set of text and non-text blocks.
           | They're useful and provide rich building blocks for
           | documents.
           | 
           | 3) Some design engineers are exploring multi-modal text
           | editors. Text, audio and video in the same document,
           | integrated with CRDTs for collaboration.
           | 
           | One would think that digital text editing had already reached
           | state of the art, but the work above shows that there's
           | plenty to discover yet. I'd love to hear your take on what
           | you think could be much better.
        
         | CiceroCiceronis wrote:
         | Cahier looks like exactly what I've been hoping for for a long
         | time. People have been taking "knowledge management" seriously
         | for a few years now and we have a number of great tools like
         | Obsidian, Zotero, Anki, and their brethren. But there's still
         | no real good solution to properly highlight and annotate
         | documents, then link those outside their originating document
         | into the broader context of one's notes. Instead you end up
         | with multiple silos--a Zotero full of papers, an Obsidian full
         | of notes etc. This strikes me as a definite step in the right
         | direction--thinking about knowledge management as an integrated
         | process, with a workflow right through from reading, to taking
         | notes, to organising those notes, to actively employing them to
         | generate new insights and effectively write.
         | 
         | (I guess my only concern is around potentially reinventing the
         | wheel when it comes to some of these areas. E.g. do you plan to
         | integrate every feature from Zotero, like the web-integrated
         | grabber? That sounds like a prodigious amount of work, but
         | without it it's hard to fully supplant Zotero as a reference
         | management solution. I'm curious as to your roadmap for this
         | and what you see as the ultimate feature set and user
         | workflow.)
        
           | dragonhuang wrote:
           | Have you tried Heptabase? (https://heptabase.com/)
        
             | CiceroCiceronis wrote:
             | No, will check it out, thanks!
        
           | felipefar wrote:
           | This is exactly why I created Cahier. I want to make it excel
           | at the capture and processing steps of the research workflow.
           | We're close to having the foundational features of the
           | software in place and will release the beta soon.
           | 
           | But we want to expand the supported attachment file formats
           | (possibly with video and audio as well), with full annotation
           | and referencing support, more formatting options in the note
           | editor, .bib import/export, synchronization, linux and mobile
           | apps.
           | 
           | I don't plan on having feature parity with Zotero. I think we
           | can provide more value by focusing on the features that
           | explore the interaction between the annotations and notes and
           | on supporting more media types.
        
           | vasvir wrote:
           | Hypothesis https://web.hypothes.is/ is pretty good at keeping
           | notes on PDF.
           | 
           | Normally it anchors the annotations for any url but i believe
           | that for PDF is also doing some extra checksum magic to
           | uniquely identify the PDF and apply the annotations.
           | 
           | Furthermore you can have collaboration features such as group
           | annotations. Useful for classes or science labs...
        
             | kaba0 wrote:
             | I have been thinking about this program for a long time
             | now, and one area I haven't seen covered are references
             | that work even across different versions of the same
             | document (e.g. the book got a new version, but still has
             | the same chapter more or less unchanged, or you highlighted
             | something based on the epub, and switched to the PDF).
             | Hypothesis's implementation works quite well, as they were
             | sort of forced to handle it due to web pages always
             | changing (they store some of the surrounding context).
        
         | wolverine876 wrote:
         | That looks very interesting. An essential feature for me is
         | data, including my notes and annotations, that will remain
         | usable in the long run - many decades into the future.
         | 
         | Otherwise, my work of today is lost. What happens if you stop
         | making Cahier someday or if I need to move to another system?
        
           | felipefar wrote:
           | I agree with you. We're expanding our support for
           | import/export as time goes by, there will be no lock-in. We
           | already have markdown support and plan on adding markdown
           | import/.bib export and import/pdf export. Plenty of formats
           | to choose from. Your notes can already be exported and opened
           | on Obsidian today.
           | 
           | If there's enough interest, I'm also open to documenting the
           | file format we use.
        
         | burgerrito wrote:
         | This looks really, really cool! Is there a plan to make this
         | available in Linux I wonder?
        
           | felipefar wrote:
           | Thanks! Yes, we plan on adding a Linux version. The framework
           | we use is cross-platform, but there is a thin layer that has
           | to be ported.
        
         | rossant wrote:
         | Congrats, looks great!
         | 
         | For reference management I'm finally sticking with Zotero after
         | maybe 15 years of trying it. With version 7 beta it's finally
         | becoming really good for my use-cases.
        
         | halgir wrote:
         | This looks really good, thanks for sharing. Like other
         | commenters, I use Zotero and will probably stick to that for
         | the near future. The main feature for me in Zotero is sync'ing
         | across devices. I usually read and annotate papers on iPad, and
         | love that my highlights and notes are synced for when I write
         | and need to reference them on either my MacBook or Windows
         | desktop.
         | 
         | Your note-taking solution seems far superior though. Sometimes
         | I wish we could smash together different software into just the
         | right thing for us.
        
           | felipefar wrote:
           | I'm eager to add synchronization and mobile support for
           | Cahier. It could take some time because the amount of work is
           | not trivial, but I know I'm able to deliver.
           | 
           | What other features are essential for you? Do you work on
           | academia or in the industry?
        
             | halgir wrote:
             | On the other hand, the lack of synchronization might be a
             | selling point for others, who militantly support "local
             | only".
             | 
             | Solid highlighting is important to me. Zotero does it
             | fairly well, but doesn't support freehand highlighting on
             | files that lack OCR.
             | 
             | I've recently gone back to school after a decade in tech.
        
             | keheliya wrote:
             | Thanks for this. Your current features plus mobile
             | synchronization will be awesome. I'm a researcher in
             | industry. My current workflow is primarily in zotero. But
             | definitely needed a better tool to synthesize notes from
             | multiple papers in a high-level notebook. So this will be
             | ideal.
             | 
             | I use an eink device (kindle scribe) for reading papers as
             | well. Right now, the syncing between this device and the
             | rest of the knowledge base is manual. It'll be perfect to
             | have this also integrated into the workflow smoothly
             | somehow.
        
       | nailer wrote:
       | I'd love it if any PDF reader could simply reformat PDFs to be
       | single column so they would be viewable on mobile devices.
       | 
       | Essentially, as if they had never been written in PDF in the
       | first place. Does anyone know if such a thing exists?
        
         | coredog64 wrote:
         | Back in the early days of Sony e-ink readers (e.g. PRS-505)
         | there were some apps that promised that capability. My
         | recollection was that they were very fiddly and took a lot of
         | time on your desktop before you got something readable.
        
         | felipefar wrote:
         | I think that the main issue is that the columns in the PDF
         | aren't identified as columns of sequential text, they are just
         | rectangles. So there is no reliable way to reposition the text
         | so that it doesn't use two columns.
         | 
         | I've seen others propose to replace PDF in favor of more
         | dynamic formats like EPUB. But I wonder if it wouldn't be more
         | pratical to standardize tags and proporties that can be written
         | to the PDFs, so that readers are better able to handle them.
        
           | nailer wrote:
           | Yes. But it's relatively easy to train a model as there is a
           | huge quantity of before text and after PDF available.
        
           | nbenitezl wrote:
           | Not true, PDF standard has concept of text flow, that's why
           | when you highlight horizontally from a column all the way to
           | next column then all text in the first column is highlighted.
        
         | gnicholas wrote:
         | Adobe has a feature called Liquid Mode that does this:
         | https://www.adobe.com/devnet-docs/acrobat/ios/en/lmode.html
         | 
         | Note: they send your document to the cloud for processing.
        
           | rossant wrote:
           | The cloud might be a no go to some.
        
         | hexomancer wrote:
         | Sioyek developer here, we don't have the exact feature you ask
         | for, but we have an alternative.
         | 
         | Instead of modifying the PDF file (which kind of is against the
         | point of PDF files in the first place, the point is the file
         | looks the same in all devices) we have a ruler which can
         | automatically highlight the line being read. If the line is
         | larger than the window, then we move horizontally so the next
         | part of the line is shown. If the line is such that it is
         | larger than the current window but is smaller than the next
         | horizontal movement, a red notch is displayed in the ruler
         | which marks the location of the line which will be moved to the
         | leftmost side of the window.
         | 
         | I know I explained it poorly, here is a video which should
         | clarify: https://www.youtube.com/watch?v=ZYUYMhvwN3U
        
           | nailer wrote:
           | > Instead of modifying the PDF file (which kind of is against
           | the point of PDF files in the first place, the point is the
           | file looks the same in all devices)
           | 
           | I, as a reader, don't care about this. I want the document to
           | be the most readable on all devices.
        
         | nbenitezl wrote:
         | Not what you're asking for, but something that helps with
         | displaying in mobile devices is removing margins, you can use
         | this open source app for that
         | https://flathub.org/apps/com.github.arminstraub.krop .
        
       | vouaobrasil wrote:
       | Portals is a very cool idea.
        
       | aragonite wrote:
       | Great tool! A feature suggestion: a common complaint about PDFs
       | compiled from e.g. LaTeX is that text elements like "fi" in words
       | such as "profile" cannot be correctly copied due to ligature
       | encoding (e.g. try copying from the title in [1]: "profile"
       | becomes "prole" and "identifiers" becomes "identiers"; also see
       | discussion at [2]). An option to automatically fix this within
       | the viewer could be a desirable feature -- though admittedly I
       | haven't thought this through and I'm not sure how feasible it is
       | to implement such a feature at the viewer level.
       | 
       | [1] https://www.unicode.org/L2/L2022/22230-math-profile.pdf
       | 
       | [2] https://tex.stackexchange.com/questions/33476/why-cant-fi-
       | be...
        
       | kranner wrote:
       | I'm curious about the name. It seems to mean thirty-one/sy w ykh
       | in Persian. Is it a literary reference? Something to do with the
       | Simurgh tale?
        
         | hexomancer wrote:
         | Sioyek developer here. There is no deep meaning behind the
         | name, I just like the number 31 :)
        
           | kranner wrote:
           | Thanks for clarifying :)
        
       | ajfriend wrote:
       | Excellent textbook examples in there :)
        
       | qwerty456127 wrote:
       | Very nice. It could only be made better by supporting more
       | formats. Like mobi, fb2 and DJVU. I miss Sumatra when using a Mac
       | as it could open all of these beautifully on Windows. Perhaps
       | Sioyek could make a great replacement if coupled with a library
       | like Pandoc.
        
         | maskros wrote:
         | Since this viewer uses MuPDF as the document engine, it should
         | already support EPUB, MOBI, FB2, and XPS document formats.
         | 
         | If it doesn't, it should be a relatively simple task to upgrade
         | the mupdf library to the latest version and recompile Sioyek to
         | get all the file formats supported by mupdf.
        
       | wanderingmind wrote:
       | Years ago during grad school, I used a tool called docear, which
       | can manage papers and had a mind map to documents our ideas. It
       | was a fantastic tool far beyond the time. I still have not found
       | an elegant knowledge management tool like that one
        
       | anigbrowl wrote:
       | I installed before I even got to the end of the feature list. I
       | like it a lot, though it could use some improvements - I miss 2
       | page display, for example.
       | 
       | While the keyboard control interface is great the absence of menu
       | commands is not. It's weird to me that there's no way to bring up
       | a help display from within the program (there's one there when
       | you first open, but it vanishes as soon as you open something); I
       | had to go to the website and move to the documentation page to
       | see that I was doing.
       | 
       | Still, it has so many good features built in that are optimized
       | for research that it's worth the inconvenience.
        
         | hexomancer wrote:
         | Sioyek developer here. We have added 2 page mode in the
         | development branch.
        
           | anigbrowl wrote:
           | Now even more of a fan!
        
         | Levitating wrote:
         | You can open the command palette with : and search for commands
         | and their bindings.
        
       | eimrine wrote:
       | Why have you not noticed anywhere that the program does not
       | support Windows 7? I have read the system requirements, then
       | found no info about 7, then run the .exe file, then realized it
       | is not running without any error.
       | 
       | There is a reason software must have a clearly defined system
       | requirements.
        
         | Rinzler89 wrote:
         | _> Why have you not noticed anywhere that the program does not
         | support Windows 7?_
         | 
         | What's with the attitude? Maybe the author didn't expect people
         | to still be running an OS that's 15 years old and 4 years since
         | its End-Of-Life.
         | 
         | Nothing wrong if you voluntarily choose to daily drive a dead
         | OS today at your own risk, but expecting unpaid developers to
         | cater to your super narrow niche is the epitome of entitlement.
        
           | eimrine wrote:
           | > Maybe the author didn't expect people to still be running
           | an OS that's 15 years old and 4 years since its End-Of-Life.
           | 
           | Do you know why the System Requirements pages exist? Do you
           | know who uses them? Do you know what the user does when he
           | opens the System Requirement page and can not find the
           | information whether this or that machine capable of running
           | the software?
           | 
           | > expecting unpaid developers to cater to your super narrow
           | niche is the epitome of entitlement.
           | 
           | Please don't read what I didn't write and have some respect
           | for those who has just unfreezed from a time capsule.
           | Disability to define whether I can run the program even after
           | looking at the System Requirement page is kind of annoying.
        
         | wtfwhateven wrote:
         | Why are you using windows 7?
         | 
         | "legacy operating systems that have not been supported by their
         | vendor for 4+ years are not supported" is common sense
        
           | eimrine wrote:
           | > Why are you using windows 7?
           | 
           | I have a laptop with ATI videocard, it can not run a modern
           | OS any more.
           | 
           | > is common sense
           | 
           | When the laptop was new, it was a common sense to support as
           | much old Windozes as possible. Come on, this laptop
           | definitely deserves to have a PDF reader.
        
             | wtfwhateven wrote:
             | > When the laptop was new, it was a common sense to support
             | as much old Windozes as possible.
             | 
             | No it wasn't.
             | 
             | > Come on, this laptop definitely deserves to have a PDF
             | reader.
             | 
             | Then use an operating system that is supported instead of
             | expecting devs to do what you tell them to do.
        
               | eimrine wrote:
               | I have edited the message, I meant ATI videocard. The
               | most modern OS which supports this videocard is 7.
               | 
               | > No it wasn't.
               | 
               | How old are you? In 2009 it was not just common, backward
               | compability was Windoze's killer feature at that time.
               | 
               | > Then use an operating system that is supported instead
               | of expecting devs to do what you tell them to do.
               | 
               | Adding one text line in System Requirements page, no any
               | coding, is telling devs what to do? There is a reason why
               | the System Requirement pages exist.
        
               | Rinzler89 wrote:
               | _> In 2009 it was not just common, backward compability
               | was Windoze's killer feature at that time._
               | 
               | You're massively confused and mistaken on what backwards
               | compatibility actually is. Backwards compatibility means
               | that a platform/OS from the present day can run software
               | from the past, not that an OS from the distant past(2009)
               | can somehow magically run software from 15 years in the
               | future, which is what you're trying to do and is not a
               | use case any mainstream OS has ever been designed for
               | since nobody ahs a crystal ball to know how SW will be
               | written in the future.
        
             | Rinzler89 wrote:
             | _> I have a laptop with ATI videocard, it can not run a
             | modern OS any more. _
             | 
             | Implausable. I have a PC from 2006-2007 with a equally old
             | Nvidia card and it can run modern Debian(AntiX 23.1) just
             | fine with FOSS drivers.
             | 
             |  _> When the laptop was new, it was a common sense to
             | support as much old Windozes as possible._
             | 
             | What does that even mean in correct English without leet
             | speak?
             | 
             |  _> Come on, this laptop definitely deserves to have a PDF
             | reader._
             | 
             | Instead of expecting people to write Windows 7 compatible
             | software today why aren't you trying Linux on it? Then you
             | can read all the PDFs you like. Have some common sense
             | please.
        
               | eimrine wrote:
               | FOSS driver for ATI makes my laptop very hot and only 1/3
               | of battery time.
               | 
               | I expect not this, I expect the author to tell in his
               | minimal requirements page about the OS version.
        
       | yolkedgeek wrote:
       | Been using it for years. really the best pdf viewer for me.
        
       | warpspin wrote:
       | Looks great. Wished this could be integrated into Obsidian as
       | replacement for their PDF viewer.
        
       | exe34 wrote:
       | As a simple workaround for the "flip between two pages" feature
       | that is so easy in dead tree but harder on computers, I usually
       | just open the pdf twice, if the software allows two running
       | copies, or if the software is too clever, I just copy the pdf
       | into a second copy and open that. I can then alt-tab between them
       | and scroll to different parts.
       | 
       | On the phone, I can use Acrobat Reader and Koreader at the same
       | time.
        
       | vinceroni wrote:
       | Would be great if this reader could be integrated with Zotero
       | (maybe as a plug-in?)
        
       | lou1306 wrote:
       | Really interesting feature set! I'd like to ask, are notes and
       | highlight saved separately or are they embedded with the PDF?
        
         | hexomancer wrote:
         | They are saved separately. We do have an "embed_annotations"
         | command to create a new pdf file with annotations embedded.
        
       | lelanthran wrote:
       | Very vim-like navigation (gg/G, commands, etc)
       | 
       | Brilliant!
        
       | atkirtland wrote:
       | I really liked Sioyek as a more fully-featured Zathura, but two
       | features kept me from using it as my primary PDF reader: 1. Can't
       | open multiple PDFs at the same time: Trying to open a second PDF
       | with it while it's already open with some PDF crashes both
       | instances. 2. Annotations are stored in a separate document
       | rather than the PDF itself.
       | 
       | Other users have noted both of these before. I didn't find an
       | easy fix to 1, and a partial solution to 2 uses an extension, but
       | IIRC it still requires manually running a command to transfer
       | annotations to the PDF document itself.
        
         | ryanwwest wrote:
         | Agreed on the multiple PDFs (I think that's a WIP), but I'm
         | actually in favor of annotations stored in a separate document
         | rather than embedded in the PDF. Ideally it would be nice to
         | have both options which Zotero and your mentioned extension
         | offer, but I'd prefer to have annotations separate so you can
         | access a 'clean' copy of the PDF to e.g. share with others.
         | Additionally, each PDF viewer that supports 'annotations'
         | currently supports them in its own unique way and programs
         | usually can't distinguish highlights/notes made by other
         | programs from the original source. However, Zotero and a few
         | other readers are starting to use Web Annotation Data Model
         | (https://www.w3.org/TR/annotation-model/) as a universal
         | annotation storage mechanism, which I'm hoping will eventually
         | allow you to create some highlights/notes in Sioyek, view and
         | edit them in KOReader on an e-reader, then send an annotations
         | file to a colleague who uses Zotero or Obsidian/PMK and has
         | their own separate copy of that PDF (something I'm working on
         | but very early on). https://hypothes.is operates a bit like
         | this.
        
         | leephillips wrote:
         | For the latest version (2.0.0): There is supposed to be a
         | setting for (1), but the note in the supplied settings file
         | seems to be misleading. I find that if I set
         | `should_launch_new_instance` to 1, then I can have multiple
         | PDFs open in Sioyek simultaneously, but only if I open the PDFs
         | after the first from the termiinal; opening them from within
         | Sioyek or from dmenu replaces the PDF that's already open. But
         | I never got any crashes. I use dwm on Debian.
         | 
         | I consider (2) desirable.
        
         | hexomancer wrote:
         | Sioyek developer here. You absolutely should be able to open
         | multiple PDFs (e.g. using the new-window command are passing
         | the --new-window command line option). If you are experiencing
         | crashes please open a github issue.
        
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