Features:
* Quickly preview or jump to figures/references/equations/etc. (even if the PDF doesn't have links)
* Search paper names in google scholar by middle clicking on their name (you can configure other search engines as well)
* Ruler mode for easier reading and less eye strain (for a demo of this feature, see https://user-images.githubusercontent.com/6392321/168427739-...)
* Searchable table of contents, automatically generate table of contents if not available
* Searchable highlights/bookmarks
* Browser-like history navigation
* Mark locations for quick navigation (Vim style)
* Synctex support
New in 1.3:
* Vastly improved ruler mode with support for multicolumn documents and ability to automatically goto/portal to/overview the definition in highlighted line.
* Automatic table of contents generation for documents that don't have table of contents
* Automatically mark the location of last search with symbol '/' and location of last visual mark with symbol '`'
* Better handling of visual ruler in presentation mode
* Add ability to automatically use downloaded files as portal destinations (see https://sioyek-documentation.readthedocs.io/en/latest/config...)
* Add ability to select text using keyboard (see https://github.com/ahrm/sioyek/issues/147#issuecomment-10890...)
* Add ability to open files using drag and drop
* Save and restore window and overview positions
* Add ability to execute shell commands on selected text in PDF file (for example can be used to make a translator)
* Add ability to bind multiple commands to the same key binding (all are executed in order when key is pressed)
* Improved smart jump to support more document formats
* Handle `xclip` text selection
* Add ability to rotate pages
* Numerous bug-fixes and quality of life improvements