two states

Merge two or more PDF pages into one page in a single PDF file.

Analyze changes between two HTML files with a visual Web page comparison utility.

Hold the key continuously and delay a fixed time between two key press events.

Compare the similarity and difference between the two images.

Overlay two images or text and convert them into one file.

Create binary diff files from two distinct files, source and target.

Create binary diff files from two distinct files, source and target.

Manage your files and folders using two panels of disks browsers.

Compare content of two folders and back up with visual comparison.

Compare content of two folders and back up with visual comparison.