sound merge

Create, merge, split, protect, convert, and display PDF files.

Transfer, merge, and back up your Gmail, Android, iCloud, and Outlook contacts.

Compare and merge diffing files and folders.

Edit and convert videos, crop, cut, merge, rotate, add watermark and subtitles.

Convert, rip, cut, merge, and record MP3 files.

Read and merge text and source code diffs.

Transform your data interactively, step-by-step - clean, reformat, merge, and dedupe table/list.

Combine, merge, or split PDF documents in your Java application.

Convert Word to PDF in bulk and merge, without the virtual printer.

Compress, merge, and combine TIFF files from command line.