5 Best PDF Compare Tool for 2026, Including Freeware
Editor's notes on Feb 20th, 2026: DiffPDF was on the top list for a long time, but since 2025, DiffPDF version 6.2.0-pe, the final version of DiffPDF is longer [...]
How to Uncheck a Box in PDF Using 5 Ways?
Whatever the reason is, unchecking a box or button in PDF is readily available in many PDF apps, including dedicated programs on Windows and macOS. Once you have [...]
How to Unredact PDF on Windows or Mac?
When you open a PDF, you find some texts are blacked out, you are blocked out of some important information, and want to get rid of it. If [...]
10 Best PDF Measuring Tool for 2026, Including Free
Sometimes we just need a quick measurement on a PDF drawing file and PDF measuring tools provide the best way to do that. These tools simply measure the [...]
How to Change Font Size in PDF Fillable Form with 4 Ways
Fillable PDF text is too big and want to reduce the font size in your PDF form? Or the fillable font is too small and want to make [...]
4 Ways to Edit PDF Text with Same Font 2026 (Online Free)
It might happen to you like this: you download the free trial of a PDF editor that boasts itself in good price and powerful features, then open your [...]
How to Rotate PDF Permanently and Save It That Way?
PDF documents are everywhere, we cannot live without it. Even you haven’t installed a professional PDF tool with editing features, it is much likely that you have a [...]
3 Ways to Add Radio Buttons in PDF, with or without Acrobat
Here in this guide, we will share 3 ways to add radio buttons in a PDF, by using Adobe Acrobat to align, distribute and center the buttons professionally, [...]
6 Ways to Replace A Page in PDF, Free Solutions Available
I needed to submit a consolidated project proposal to my partner. My team had provided their sections as separate PDFs. After combining them, one of our members [...]
How to Redline a PDF with or without Adobe: 6 Ways
It's one of the redlining's greatest benefits: it keeps record of all the changes/additions/deletions you made to official documents or contracts, gives a clearer insight about how both [...]