Readdle (http://www.readdle.com) has updated its application for editing PDF forms and annotating PDF documents. PDF Expert 2.2 is now able to flatten signature, filled forms data, and annotations, making it possible to protect PDF files from editing and view all annotations within any PDF reader application.

The latest version of PDF Expert for iPad makes the flattening process “flawless,” taking just a single tap to flatten a PDF file before emailing it, says Readdle CEO Igor Zhadanov. One of the long-standing benefits of the PDF format is that it allows users to add notes, comments and highlights to PDF file, he adds.

PDF Expert extended this capability making PDF annotations editable on the iPad. While lawyers tend to protect document from being changed, professors, students and medicals might well need the ability to edit existing annotations, says Zhadanov. Another feature that can come in handy is emailing PDF files along with the annotations summary to overview quickly all essential mark ups in the document, he adds.

PDF Expert for iPad 2.2 is available on the Apple App Store at US$9.99 to new customers and as a free update for existing PDF Expert for iPad owners.