What is the best pdf app you prefer in linux?

i prefer ms-edge in reading and highlight pdf documents. it has features:
1-highlited the selected sentences with more than color
2- translate the selected word
3-add comment with easy way
4-can use gpt4 to ask about anything in the book


but it miss some features like make bookmark or list to the highlighted and comments, and i can't do undo or redo, and doesn't have option to extract the highlighted pages to documents

I use Master PDF Editor 5 and have for over a year but to be honest I only use it to view PDF files now ....

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For viewing, highlighting, annotating and extraction of text and images, speech output, magnification up to 4,000 percent and built in web search, Presentation mode, Okular. For modifying/editing, pdf Studio Pro 2023.

Ancilliary apps, pdf Mod, pdf Arranger.
Commandline tools, ocrmypdf and for repairs pdftk.

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the default one (Document Viewer evince) in Zorin is very good, but it doesn't have the features of translate the selected word, and the highlight in it is not easy if we want to highlight with other colors, I wish if that app has plugins for that.

I haven't tried many so I can't say I prefer one, but the only two I used have their purpose and fit perfectly to my needs:

  • Gnome's built-in pdf reader (it supports reverting the colors to act as dark theme when I'm reading something)
  • Firefox (it lets me highlight in different colors and add text)

There's another one that I use that isn't really on linux, but I consider relevant: When I'm on my android tablet I use Librera FD, which, just like gnome's, supports dark theme to go easy on the eyes and is open source (from the f-droid store)

I think you meant invert colours. Okular can do this using Accessibility options. I am not aware of any pdf app that includes translation - I don't know if Google docs offers this. For editing I have always used the commercial application of pdf Studio Pro by Qoppa which has been taken over by Apryse. You get all that Adobe Acrobat has to offer at 1/5 of Adobe's pricing with no need to pay for additional features. SoftMaker Office NX (monthly rental) includes DeepL Translate (Open Source) and you can export to pdf or epub - the latter is still something M$ does not offer.

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I just run into this video:

The Docker component will probably throw less technically inclined folks off, but I thought I mention it here nonetheless as it seems like a really nice tool. Check the project page for details on all features:

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i wonder if it can cope with compressing pdf's? I had to use pdfStudioPro to compress scanned images of documentational evidence for a family member. The organisation requesting it limited file size to 10 Mb and using 'Balanced' took it just over 10 Mb which baulked at online submission - had to use poorest compression which took it down to 2.7 Mb but was still readable - just!

I haven't tried it myself yet, but the feature page says that it does support compression; how well it does so remains to be seen.

One thing I liked about this project is that it seems quite active, both in terms of development and community wise. So in case of any issues, feedback or feature requests you're likely to get at least an answer.

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