We are happy to announce version 7.0.0 of PDFTron's iOS SDK.

This release adds undo/redo support, a better search UI, support for grouped annotations, and more.

Undo/redo support

PDFTron for iOS now supports undo/redo for all operations, including annotating and page manipulation. Undo/redo does not rely on temporary files, and the stack persists after the document is saved. Undo operations are available programmatically as well as via the standard NSUndoManager interface.

undo-redo

Improved search UI

The search results now highlight all results within the window, and uses darker colors to highlight each result.

search-highlights

Date, time and numeric form keyboards

Form filling has been improved, where fields that specify data in the form of a date, time or numeric value will present the corresponding picker or keyboard.

Adding a UIView to a PDF page

We have a new set of APIs that greatly simplify the process of adding a UIView onto a PDF page.

Grouped annotation support

Annotations that form a group are now selected together, and will move and resize as a group.

And more…

Please see our change log for a list of all changes.

We hope you like these changes and any feedback is greatly appreciated. Please don't hesitate to contact us if you have any questions or suggestions.

We also have many exciting new features planned for the coming weeks and months. Stay tuned…