PDF Compare is an effective software application that identifies changes and differences between PDF files. Visually comparing two PDF files to identify changes or differences is harder than it sounds; hard enough, not to mention extremely boring. But it's all too easy to miss subtle differences, and some changes might not be visible at all. PDF Compare is the software tool that can do the job for you much faster and more thoroughly, other than putting yourself through it. With dual file display panes, this efficient tool makes quick work of a tedious but necessary job.

Six different ways to compare the left and right PDF files are available, Compare Text and Graphics, Visual Compare, Structural Compare, Simple Textual Compare, Advanced Textual Compare, and Byte-by-Byte Compare. You can set PDF Compare to compare appearance (i.e. compare visually) or text (i.e. compare text), zoom in or out, and navigate through multiple pages, but most of the analyzes and comparisons are done by this tool automatically when you press Compare, and the tool very rapidly highlights every difference in each view. The software quickly presents a report detailing differences between the PDF documents when you press Create Report.

In addition to side-by-side main views, PDF Compare has a top panel that includes page navigation, fit to height, fit to width, zoom in, zoom out, search, and print buttons as well as access to Options, Help, and About.