功能丰富的 PDF 文档编辑软件，功能十分强大，创建、编辑、加密等等，而且还可以像在 Word 里面一样使用，十分容易上手。
Why do you need to wait for a hundred pages PDF document to be synced while you have just made a few markups？ PDF Max S for Dropbox is the answer for that problem.
** PDF Max S is a special app that requires an Dropbox account to function. To find out the amazing syncing feature of PDF Max S， please connect more than one device to the same Dropbox account then annotate the same PDF document together.
For single user， the advantage is a faster synchronization of annotations， thus it helps save your mobile data， specially when traveling.
For the full-featured， traditional way of synchronizing documents over cloud services， please consider PDF Max 4 Pro **
PDF Max S is built ON TOP of PDF Max – the world’s most popular mobile PDF app； WITH an incredible， second-to-none Delta Sync algorithm： No more waiting， no more bandwidth， no more battery drain， ALL YOUR CHANGES are smartly exchanged in real-time across your devices. Even if you were offline， you can get the most recent changes from other devices/users in just a few seconds when you get connected.
PDF Max S features include：
* READING FEATURES
- Smooth vertical scrolling – allow you to scroll through your entire PDF document smoothly and efficiency.
- Open documents in multiple tabs.
- Multi-purposes SideBar includes everything you need to skim through your documents like never before： Page Thumbnails， PDF Outlines/Bookmarks， Annotation List & Search Panel.
- Friendly & Easy to use User Interface
* ANNOTATING TOOLS
- Text markup： HIGHLIGHT， UNDERLINE， STRIKEOUT
- Unlimited threaded comments (notes) attached to any annotation.
- Handwriting with Pen tool
- Eraser tools to manipulate your handwriting
- Shape tools to draw Line， Arrow， Rectangle & Oval
- Freetext tool to type over PDF pages
- Image tool to insert images over PDF Pages
- Stamp tool to insert Predefined， Standard Business Stamps
- Signature tool to manage and insert your signatures
P/S： All your annotations sync across your devices in real-time.
* PAGE， OUTLINE & BOOKMARK Management
- PDF Max S allows you to manage PDF Pages， PDF Outlines & PDF Boomarks in an easy to use user interface. More important， all your changes will be synced across your devices in real-time.
* OTHER FEATURES
- Email or Print PDF document in Flattened or Annotated format.
- Undo/Redo tools to correct your mistake if necessary.
Follow us on Facebook at www.facebook.com/MobeeraHQ for supports and updates， and feel free to email us at firstname.lastname@example.org for any inquiry. Now， Let’s go annotate！