Portable DiffPDF

Just like its installable counterpart, Portable DiffPDF could prove an ally in a situation where you have to quickly compare two PDF files and identify if they are identical or if there are any differences between them. You can either correct the differences or declare them to be copied. It's certain that there are plenty of scenarios in which one can use such an application. It all boils down to what your final goal is.

The application's interface is quite basic. It's not ugly, more functional, though. You get to deal with three specific areas. The first one is the tools area. Here, you can choose between the available comparison modes. Will you judge similarities by appearance, by characters, or by whole words? The zoom and conduct analysis buttons are also situated in this area. The next two panes, situated in the center and to the right, are actually there to display your two imported PDF files to be compared.

Once you've uploaded your files, make sure the right page in each PDF has been selected. You might want to compare page one of the first PDF with the third from the second imported file. The path for each uploaded entry will be displayed at the top. Hit the analysis button, and you will get a result shown as a percentage value in the lower left pane. There, you'll almost instantly understand to what extent your two compared pages are identical, also depending on the comparison criterion selected earlier.

Portable DiffPDF is a great application for comparing PDF files on the go. Whether you're checking assignments, trying to create two identical PDF files, or simply isolating duplicates on your drive, this program can live up to its fame by giving you a hand in identifying any duplicate PDF files.