Today, Readdle has launched their well known editing tool PDF Expert for Mac OS X. PDF Expert is a fast, beautiful tool that will empower your PDF workflow.

From the first document, PDF Expert springs into action with smooth scrolling and fast search. PDFs open instantly, whether they are just small attachments or 2000-page reports. When it’s time to edit, all the great tools you need are easy to find and just a click away. PDF Expert’s quick annotations, easy form filling, and powerful file merging will chew through your work in record time.

For a limited time, PDF Expert 5 for iOS is available as a free download (normally $9.99) from the App Store as a part of Apple’s free app of the week promotion. The app requires any device running iOS 8.0 or later and has been optimized for the iPad Pro.

PDF Expert 5 provides the best experience for filling out PDF forms. Text fields, checkboxes, radio buttons and other form elements work as you expect and all the information you enter is saved within the form. Even complex interactive forms with Javascript work impressively well.