Article Categories
Troubleshooting
- How to set up your scanner to work with Sane and PDF Studio under Fedora 27 Linux’s systemd
- How to fix the issue with blank pages for PDFs created with ScanSnap on macOS Sierra
- “Access is denied” when saving documents
- Unable to rearrange / move pages within a PDF due to document permissions
- Troubleshooting errors with Save / Save As in PDF Studio
Digital Signatures
- New “Fast Sign” Signature Stamps
- Creating Self-Signed Digital IDs for signing PDF documents
- How to Avoid Adobe Appearance Integrity Report To Show Digital Signature as Invalid
- “Select a smart card device” error message when launching PDF Studio
- How to setup USB Smart Card Hardware PKCS11 signing on Mac
Interactive Forms
- Set field calculation order
- Simple example to add custom JavaScript calculations to form fields in a PDF
- Create a toggle checkbox to show and hide fields in a PDF form using Javascript
- Sending email with PDF form data file and custom email subject
- Free PDF Reader With Form Filling (Windows, Mac, Linux)
Security
- How to set document permissions so that other people cannot edit my JavaScript
- “The signature contains a timestamp (…) that is not trusted” displays on signature validation status dialog
- Is there a way to set an expiration date on a PDF document?
- PDF digital signatures validation status
- How to make a PDF form non-editable
In the News
- PDF Editor Reviewed by Linux Magazine Italy
- File sharing broken after Security Update for macOS High Sierra 10.13.1
- PCWorld Best PDF Editors of 2017: Great Review for Qoppa’s PDF editor!
- PDF Studio recommended as Adobe Acrobat Alternative by St Olaf College
- Why Redaction is BETTER than Pixelating or Blurring
