PDF Editify makes browser-based markups and utility tasks easy, but it remains limited as a full document editor.

I recently had need again to compare two different versions of a PDF (text) file. I used a trialware tool a while back that worked for me, but I can't recall what it is. So I Googled and found ...

Sometimes a problem seems hard, but the right insight can make it easy. If you were asked to write a program to compare two PDF files and show the differences, how hard do you think that would be? If ...

Long PDFs slow people down for all kinds of reasons. Sometimes the file is too dense to skim quickly. Sometimes you need the key points without reading every page. Sometimes the document is in another ...