Send to Kindle
Send to Kindle is the official app from Amazon which helps you easily send books, personal documents to your Kindle from your PC or Mac computer.
software
Full-featured PDF editor – PDF Element
PDF Element – Best PDF Editor for Windows and Mac to edit, convert, OCR, sign, combine, split, annotate, redact and password protect PDF docs.
Dr.Fone iOS Toolkit
iOS Toolkit contains various useful tools for iPhone, iPad, including iOS Data Recovery, iOS Data Transfer, iOS System Repair, iOS Data Backup & Restore, iOS Data Eraser, iOS Screen Unlock, and so on.
HandBrake
HandBrake is a free, cross-platform video transcoder to convert video from nearly any format to a selection of modern, widely supported codecs.
UniConverter
UniConverter is an audio, video editing and converting software with many extra & useful tools, such as screen recorder, video downloader, DVD burner, DVD ripper, DVD converter, video compressor, image converter, GIF maker, video metadata fixer, VR converter, CD burner, etc.