When comparing KDE Okular vs PDF Studio Viewer, the Slant community recommends KDE Okular for most people. In the question“What are the best PDF viewers for UNIX-like systems?” KDE Okular is ranked 1st while PDF Studio Viewer is ranked 7th.
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 The Only Complete PDF editing/viewer tool available for all platforms (Windows, MacOS, Linux, Unix)
It GUI is user friendly and well designed with its ribbon menu. It's actually very similar to what you can find in a MS Word or Adobe Pro environment. It has all the features you can imagine for commenting/marking the PDF, creating forms, and editing PDF files. It is available on all platforms: Windows, MacOS, AND LINUX.
Pro Responsive to critiques
They are actively looking for ways to improving their products. For example, they made some improvements in PDF Studio 2018 after a PCWorld review came out in 2017.
Pro Digital signatures
PDF Studio Viewer is the only free PDF viewer for Linux that recognized digital signatures from docusign in a way that lets you easily verify the signatures.
Pro Advanced print & search options
PDF Studio Pro is a really useful PDF editor. This is more like Adobe Acrobat earlier versions, in terms of look and feel. That’s user friendly. Command icons are clear with tooltip already written. Menu is elaborated well break-up. Also, all the functions seems to be available.
Pro Measurement tools
Pro PRO Suitable for both basic users and more advanced Acrobat veterans
I was looking for a decent alternative to Acrobat, as it was the last thing my dad needed to make the switch to Linux. Tired of paying per month for proprietary software I wouldn't actually own, I went on a quest to find multi-platform PDF editing software. Unfortunately, it isn't FOSS, however, the license is owned in perpetuity and you are helping out lesser known devs who've made a great product. Pros * All of the features needed for the average acrobat user. * Edit, merge comment, measure, tools suitable for both basic users and more advanced Acrobat veterans. * Speed. Even in a VM using a paltry 1 GB of ram, I was able to merge multiple documents and watermark effortlessly. I generated a study guide from handwritten notes in seconds. * Create from the scanner is incredibly useful. * Multiplatform compatibility
Pro PDF Studio Viewer is the fastest PDF viewer on Linux
It'd be nice if a FOSS source viewer were out in front here, but sadly not. It would be even nicer if PDF and Adobe's dead hand hadn't become the standard doc format. but sadly we have to live with this.
Pro User-friendly advanced printing
The easiest software I found for printing multiple pages on Linux Mint. All other software require inputting pages by numbers, here, you can just select the ones you want to print, choose the format of multiple pages (horizontal/vertical) and it all comes with a beautiful gui. I used to love adobe and foxit on windows, but those programs suck on linux.
Pro Loupe tool
Pro As of 2018 supports text, markup & graphical annotations, as well as form filling
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 Proprietary software
This is proprietary software using a freeware model. It is not open-source.
Con Requires Java!
What's the most bloated runtime platform in the history of computing? Java! This app actually tried to install a JVM on my machine without asking... not having it.
Con CON Free version add a watermark
The free version will add a watermark, which is kind of annoying but I guess necessary for them.
Con Extra features require payment
Any feature not included in the freeware version requires purchasing a license to upgrade.