Release Notes (History)

Automatic white background correction for color and grayscale scans
Share Buttons to share to Mail, Messages, Airdrop or third party apps (for example Evernote if the Evernote app is installed from the Mac App Store)
Auto-crop feature for easy scanning of small items such as tickets or receipts (just put the item on the flatbed scanner and let auto crop find the bounds)
A new setting to automatically OCR documents that are opened with PDFScanner
Improved OCR accuracy and speed
Performance improvements and bugfixes
Full support for OSX El Capitan

Copying from PDFScanner will now copy plain text with correct paragraph breaks. This makes pasting to other applications a lot more convenient.
Auto detect borders in crop view
Software reduction to black and white with configurable threshold
Auto detect and link URLs and email addresses
Guess title and document date from OCR data and allow to use them in save presets
Full Retina support
Bugfixes and workarounds for some scanner driver issues

Improving accuracy of OCR text placement
Using default PDF fonts (when high compression is enabled) to save space
Adding A3 support
Adding shortcurt (CMD-Backspace) for clear action
Allowing OCR on pages that already contain text
Fixing a weird bug that sometimes happens when saving documents in landscape orientation

Improved the compression algorithm for black and white documents
Restructured the Preferences and added the option to disable embedding multiple fonts (to reduce file size)
Fixed a bug that prevented duplex from being deactivated
Added confirmation dialog when closing with unsaved changes
Other small bug fixes

Customizable file name patterns (include for example date, time and machine name in the filename)
PDFScanner now appends an automatically increased number to the file name if a file with that name already exists
Added the „Saving“ help page
Added an option to disable anti aliasing on deskew (which produces lower quality images but smaller files)
Debug logging can be enabled in the preferences and the information can be sent to the developer via mail

Added a threshold to the deskew function, so it is only applied when required (i.e. the scans are skewed). This improves the image quality and file size.
Disabled the „Reduce File Size“ dialog for black-and-white only documents because b/w images got larger from the used JPEG compression.
Fine-tuned the compression settings ("very low quality" now really produces very low quality but very small files)
Extended the „Troubleshooting“ section in the online help
Minor UI bugfixes

Major improvements to OCR quality and speed by using the Tesseract 3.0 OCR engine for layout and text recognition
Added Growl notifications for found scanners and completed operations (if Growl is installed)
Added a „Reverse Page Order“ menu option
Added page orientation selection in the scanner setup dialog
Added support for hardware duplex scanning
Added an option to select the OCR language for imported documents to the Preferences
Added OCR languages: French, Spanish, Italian, Dutch, Portuguese, Swedish, Danish, Norwegian, Finnish
Improved image quality for the deskew operation
Improved anti aliasing for the PDF main view
Bugfix: Saved resolution was not correctly restored on next start