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I implore all developers of PDF readers to implement sioyek's overview feature[0]. When you hover on a cross-referenced entry, it opens a little preview window

I implore all developers of PDF readers to implement sioyek's overview feature[0]. When you hover on a cross-referenced entry, it opens a little preview window with the contents of the reference. It is an absolute game-changer for reading textbooks and technical papers; I cannot overstate its utility. [0] https://github.com/ahrm/sioyek#overview https://github.com/ahrm/sioyek#overview

kjksf 3y ago
(I wrote SumatraPDF). I know about sioyek and been meaning to steal some of their ideas. Maybe in the next version.
V1ndaar 3y ago
Evince does the same. It's a great feature, I agree.
cs3f16 3y ago
Thank you so much for sharing this extremely amazing software! I hope it gains more popularity and traction.
javale 3y ago
Thanks for sharing!!
majora2007 3y ago
This is really cool, I'm going to steal some of these ideas for my app Kavita.
spit2wind 3y ago
Is this not Ted Nelson's transclusion? Namely, "...the same content knowably in more than one place". https://en.m.wikipedia.org/wiki/Transclusion https://en.m.wikipedia.org/wiki/Transclusion
wolverine876 3y ago
> When you hover on a cross-referenced entry, it opens a little preview window with the contents of the reference. Wikipedia does the same thing, but I assume you would know that. What am I misunderstanding? Also, if it makes your PDF reader execute arbitrary remote code, isn't that a serious risk?
- drannex 3y ago
  I don't believe it's a risk, since you're not injecting arbitrary remote code into a document, you're more overlaying on top of it. Even if the reader wants to execute code, then it will, that's how you have a reader to begin with. As long as it's not the PDF itself (source document) deciding to execute inline code, you should be fine.
  - wolverine876 3y ago
    What does it matter if it's displayed in the document or in an overlay window or if it's saved in the document or not? That code could try to do anything; many PDF readers have a security option to prevent opening any remote documents or links.
    - joveian 3y ago
      Why do you think there is remote code execution? Without being familiar with that code (or evince code, which does the same thing) I can almost guarantee there is no such thing (what even would they be executing and why?).
      - wolverine876 3y ago
        How is the remote reference rendered, other than by executing a renderer for that format in a window? Renderers for web pages, for example, are very powerful platforms with a long history of security issues.
        esquivalience 3y ago
        The reference being discussed seems to be another part of the same pdf.
        hju22_-3 3y ago
        I think you've misunderstood the feature. It shows an overlay window of another part of the same PDF you're already in. It doesn't open another PDF or a website or anything, it's just a small preview of another page essentially. You could just as easily scroll to where the reference is placed in the PDF, but this lets you quickly preview the section without actually leaving your position in the document.

kjksf 3y ago

(I wrote SumatraPDF). I know about sioyek and been meaning to steal some of their ideas. Maybe in the next version.

V1ndaar 3y ago

Evince does the same. It's a great feature, I agree.

cs3f16 3y ago

Thank you so much for sharing this extremely amazing software! I hope it gains more popularity and traction.

javale 3y ago

Thanks for sharing!!

majora2007 3y ago

This is really cool, I'm going to steal some of these ideas for my app Kavita.

spit2wind 3y ago

Is this not Ted Nelson's transclusion? Namely, "...the same content knowably in more than one place". https://en.m.wikipedia.org/wiki/Transclusion https://en.m.wikipedia.org/wiki/Transclusion

wolverine876 3y ago

> When you hover on a cross-referenced entry, it opens a little preview window with the contents of the reference. Wikipedia does the same thing, but I assume you would know that. What am I misunderstanding? Also, if it makes your PDF reader execute arbitrary remote code, isn't that a serious risk?

drannex 3y ago
I don't believe it's a risk, since you're not injecting arbitrary remote code into a document, you're more overlaying on top of it. Even if the reader wants to execute code, then it will, that's how you have a reader to begin with. As long as it's not the PDF itself (source document) deciding to execute inline code, you should be fine.
- wolverine876 3y ago
  What does it matter if it's displayed in the document or in an overlay window or if it's saved in the document or not? That code could try to do anything; many PDF readers have a security option to prevent opening any remote documents or links.
  - joveian 3y ago
    Why do you think there is remote code execution? Without being familiar with that code (or evince code, which does the same thing) I can almost guarantee there is no such thing (what even would they be executing and why?).
    - wolverine876 3y ago
      How is the remote reference rendered, other than by executing a renderer for that format in a window? Renderers for web pages, for example, are very powerful platforms with a long history of security issues.
      - esquivalience 3y ago
        The reference being discussed seems to be another part of the same pdf.
      - hju22_-3 3y ago
        I think you've misunderstood the feature. It shows an overlay window of another part of the same PDF you're already in. It doesn't open another PDF or a website or anything, it's just a small preview of another page essentially. You could just as easily scroll to where the reference is placed in the PDF, but this lets you quickly preview the section without actually leaving your position in the document.