When comparing KDE Okular vs Xodo PDF Reader & Editor, the Slant community recommends Xodo PDF Reader & Editor for most people. In the question“What are the best PDF viewers for Windows?” Xodo PDF Reader & Editor is ranked 4th while KDE Okular is ranked 5th. The most important reason people chose Xodo PDF Reader & Editor is:
You get what you want by few interactions.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open source
Pro Trim margins
Easily trim margins either automatically or manually for easier reading
Pro Featureful
Pro Table selection
Pro Tabbed view option
Pro Supports touch interaction
Pro Efficient user interface
You get what you want by few interactions.
Pro Works great with diverse cloud services (e.g. Seafile) and saves changed documents on the fly in the cloud
Pro Very (very) good support
Feature Requests and bugs are nicely handled.
Pro Multi-tabs
Can open more than one PDF at a time in tabs.
Pro PDF can be read from SD Card
Xodo does not copy the PDF files to the internal memory.
Pro Reflow
App can reflow any PDF for an enhanced reading on small terminals. The process is a bit slow but works for every PDF.
Pro No ads
The reader offers a lot of features for free with no ads.
Pro Great handling for S-Pen/Digitizer
Cons
Con No XFA Adobe Forms support
Cannot fill PDF Forms created with Adobe.
Con Requires many KDE libraries
Con No middle-mouse auto-scrolling
Instead of scrolling automatically when holding down the mouse wheel and dragging, it instead zooms in or out, in contrast with many other programs.
Con Poor HiDPI support
You may have to tinker with QT__SCALE_FACTOR environment variables to get the desired size and not blurry content (this is a bug; see https://bugs.kde.org/show_bug.cgi?id=362856 and https://bugs.archlinux.org/task/54688)
Con No search results overview
You have to navigate to next/previous hit one by one
Con No "fit to page" option under printing settings
You can only print the content as given so, when you receive a bigger or smaller image thant the default of the printer, you will have to edit it first on other editor.
Con Slow scroll
Its new ultra-slow-scroll for PgUp and PgDn makes it unuseable.
Con Incitation to update to Pro Version
Con Column view buggy
Sometimes the column view is not correctly displayed.
Con No more Google Drive API
Xodo has stopped Google Drive API compatibility.
Con Lag when reading
When switching pages, there can be some lag and a re-zoom of the page.