When comparing Atril vs (Spac)emacs with pdf-tools, the Slant community recommends Atril for most people. In the question“What are the best PDF viewers for UNIX-like systems?” Atril is ranked 2nd while (Spac)emacs with pdf-tools is ranked 15th. The most important reason people chose Atril is:
It is a straight port of the GNOME2 Evince to GTK3 without sacrificing its UI like Evince 3 did. It also has all the cool stuff that professional apps need, like: Menubars, editable Toolbars, Menus with Icons, Menus with keyboard shortcuts.
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Pros
Pro No GNOME3
It is a straight port of the GNOME2 Evince to GTK3 without sacrificing its UI like Evince 3 did. It also has all the cool stuff that professional apps need, like: Menubars, editable Toolbars, Menus with Icons, Menus with keyboard shortcuts.
Pro Great Evince fork
It has been forked when Evince was still good.
Pro Extensible, customizable and scriptable
Being a Emacs plugin you can use elisp to customize, script and extend pdf-tools.
Pro Can treat multiple PDF's as one big PDF
Pro Nice search using Occur
Occur creates a list all lines matching a regexp or string in one or more pdfs and allows easy jumping between them. Really helpful when searching long documents like datasheets.
Pro Synctex support
Pro Easy installation
Although installing requires little more work than stand-alone readers, pdf-tools is very easily installed via Emacs 'list-packages' or even easier as a layer in Spacemacs
Pro Convenient default keyboard shortcuts
Uses emacs or vim-style navigation (via spacemacs/evil. Shortcut overview via transient state "SPC m .")
Pro Automatically exported notes
Notes can be exported automatically to and backlinked from an external org notes file using the org-noter or interleave package.
Cons
Con Disappointing search
In comparison with its origin, Evince, the search results in Atril is disappointing. You can search, but only locates your search term per page, the one you're located on. Want to find it elsewhere? Search all pages one by one, page by page. Hence, I personally, working/ searching in large pdfs, therefore prefer Evince, which does give you the search result for the whole document. Apart from this, Atril seems a great piece of (fork) work.
Con Some GTK dependecy
It needs GTK+ and its dependencies.
Con Only for power users
Handy only for people that want good notes/annotation management. Otherwise using any other pdf-reader is recommended.
Con Too cumbersome for quick reading or annotating
Although setting up pdf-tools is not too much work. For quick reading using some default pdf-viewer like evince/okular/zathura is recommended. Also, except for the auto-export feature (with org-noter/interleave package), other editors like e.g. pdf-XChange Editor (via wine), Okular or mupdf have even more powerful annotation features.
Con No continuous scroll
Con Requires emacs
