NXPowerLite will compress PDF, JPEG, PNG, TIFF, Microsoft PowerPoint and Word files simply and effectively, making them easy to email as attachments. It is especially effective on files that don’t zip well.

PhotoMill helps you convert a bulk of images into the most popular image formats, give your files meaningful names, watermark with text and image, adjust photos (brightness/saturation/exposure/grayscale/etc.), fit geometry (scale/crop/trim/etc.), remove private metadata, add your own copyrights etc. Also, PhotoMill is a great batch metadata editor, renamer and photo browser.

NetShred X is the easy-to-use Internet cache eraser for Mac that securely erases cache files your browser and email programs leave behind. NetShred X is the Internet privacy software that is easy, fast, and cleaner. Easy because it runs automatically - you don't have to remember to use it. Fast because it runs in the background - you don't have to wait for it. Cleaner because it will erase, not just delete all Internet tracks for almost every browser and email program on Mac.

Renaming a large number of files can prove to be time consuming without the proper tools: A Better Finder Rename is a Mac app that comes with batch processing capabilities and offers you the possibility to apply various renaming templates.

Since A Better Finder Rename comes with a real time Preview feature, you will be able to view the final results before actually performing the renaming: this way you can easily avoid any issues.

Magic Battery supports all Apple input and audio devices. Battery information will be shown in the menu bar and the main window.
The App Magic Battery shows the battery level of supported input devices and headphones that are connected via Bluetooth in the menu bar. Internal batteries are also supported.

Fission can crop and trim audio, paste in or join files, or just rapidly split one long file into many. It's streamlined for fast editing. Plus, it works without the quality loss caused by other editors, so you can get perfect quality audio even when editing MP3 and AAC files.
If you need to convert formats, Fission can do that too! You can rapidly export or batch convert files to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.