The all-new PDF Max 4

Look no further! Proven by 1.5M+ downloads across platforms!

Made with love by Mobeera since 2011. Available on the AppStore as

PDF Max 4 Pro


PDF Max 4 Free


“PDF Max is a shining example of a well-executed and thought-out app.”

James Cull

Editor, iPad.AppStorm

Desktop class PDF Reader & Editor

Mark up document with highlights and handwriting, insert texts and stamps, fill out, sign, watermark, copy/paste PDF pages and much more. Any features you would expect in a desktop class PDF reader can be found in PDF Max 4. And, not only is PDF Max featured powerful PDF tools, it is also designed to be intuitive, gorgeous and touch-optimized for both iPhone and iPad.






Fill Forms



Powerful File Manager

PDF Max 4 offers an all-new powerful file manager to help you manage all your documents from multiple sources such as online storage services (iCloud Drive, Dropbox, Google Drive, etc.), email attachments, or even local files on your PC. With Color Tags & Favorites, PDF Max 4 helps organize & categorize your documents your way. Microsoft Office documents, Apple iWorks’ documents, Zip and generic text documents are also supported.

Color Tags

Grid View



List View

Smart, Desktop-like Synchronization

PDF Max 4 brings a seamless, desktop-like integration with online storage services such as Dropbox or Google Drive. Easily browse and get the files you need, work on them anytime, anywhere, all your changes will automatically sync back to the server whenever you get connected. By featuring an auto-conflict resolving mechanism, all the changes you made will be kept without any confirmation. The auto-sync function can be disabled easily, give you the ability to perform the sync whenever you need. You can also rename, copy or move remote files/folders within or between cloud services. A lot more online storage services such as OneDrive, Box, WebDAV and FTP/SFTP will be supported early 2015.





PDF Max 4 Pro

PDF Max 4 Free