PDF Studio Knowledge Base

New Features

• How to filter comments in a PDF document
• Add favorite directories / folders to Open and Save As pane
• How to unflatten annotations
• Customize Favorite tools in the Home tab of the ribbon toolbar
• Modern UI with Light & Dark Modes

Versions

• PDF Editor Current Discount & Promo Coupon Code
• PDF Studio Versions & End of Support
• Download PDF Studio Version 2020 (Previous Version)
• Upgrade to PDF Studio 2021
• Get a Free Upgrade to PDF Studio 2021

Installation / Registration

• Qoppa’s PDF Editor Now Available on NixOS Linux Distribution
• X11GraphicsEnvironment error when installing PDF Studio as root on Linux
• License Key Management for Volume (Multi Users / Multi Key) Licenses
• MacOS: Invalid Checksum Error on Update Install
• Where can I find PDF Studio Installer (install4j) Logs?

FAQ

• PDF Studio User Guide – Japanese
• PDF Studio User Guide – Portuguese
• Sending PDF files to Microsoft OneNote from PDF Studio
• How to set the thumbnail / pages pane to be open by default
• Checkbox displays other characters when filling forms

How To

• How to manually retrieve PDF Studio log files
• How Do I Add a Watermark to a Batch of PDF Documents?
• How Can I Reduce the File Size of Documents using PDF Studio
• PDF Studio User Guide – Japanese
• PDF Studio User Guide – Portuguese

Troubleshooting

• Fixed! Error loading PDF The Native component cannot be removed then re-added to a component hierarchy
• Text highlight opaque issue
• Troubleshooting scanning problems in Linux
• Troubleshooting scanning problems in MAC
• Troubleshooting scanning problems in Windows

Operating Systems

• Chromebook

• Crostini

• Windows

• macOS - Mac OSX

• Linux

• Raspberry Pi

• Unix

• X11GraphicsEnvironment error when installing PDF Studio as root on Linux
• Edit / Annotate PDFs on Windows 10 and Surface Pro Tablets
• Use PDF Studio on different computers and operating systems

Articles

• CVE-2021-44228 – Apache Log4j Vulnerability
• Qoppa’s PDF Editor Apple M1 ARM Chip Support
• Okular PDF Reader Alternative for Linux / Ubuntu / Unix
• Evince PDF Reader Alternative for Linux / Ubuntu / Unix
• Best Free PDF Reader for macOS Big Sur (Better than Preview)

Awards

• PDF Studio receives SourceForge Leader Award
• Crozdesk awards PDF Studio Quality Choice Award

Annotating PDFs

• Export / Import

• How to filter comments in a PDF document
• How to unflatten annotations
• How to export PDF markups and annotations into CSV and Excel
• Anonymize Comments & Markups (Remove author, subject, date, history)
• Rotating Text Boxes and Shape Annotations

Batch Processing

• How Do I Add a Watermark to a Batch of PDF Documents?

Bookmarks

• Use Previous / Next View to navigate back or forward in a PDF document
• Create a PDF Destination and add Web, PDF or Bookmark Link
• Split a PDF so that the split files are named using the bookmark names
• How to print bookmarks in a PDF document
• How to create bookmarks with PDF Studio

Comparing PDFs

• How do I view two PDF documents at the same time?
• Enhanced PDF Overlay Comparison
• How to scroll one document at a time when comparing PDFs side by side
• Using Side by Side PDF Comparison
• How to Compare PDF Documents with PDF Studio

Content Editing

• Alignment options when moving content objects
• How to change the color of a PDF
• Using Edit Content Tool as Fallback to Cursor Editing
• Inline text content editing with text reflow
• How to fix or save a corrupted PDF document

Converting PDFs

• How can I Convert Several Excel Sheets as a Single PDF?
• How to extract a table in a PDF to CSV & Excel
• Convert text file to PDF with page breaks / new pages / support for character 12 form feed
• How to combine multiple files into a single PDF
• Option to export all images in a PDF document as image files

Creating PDFs

• How can I Convert Several Excel Sheets as a Single PDF?
• How to create multiple PDFs when scanning multiple pages from Feeder
• Drag and drop thumbnails to create new PDF documents on the fly from PDF Studio
• Convert Excel to PDF on Windows, Mac, Linux using PDF Software
• Convert PDF to Fast Web View

Customization

• PDF Studio 2018 Introduces New Ribbon Toolbar
• Create incremental dynamic text stamps
• Un-grouping tools on toolbar
• Set a document to open in full screen mode
• Restore last page and view when reopening a PDF

Document Services

• Split a scanned PDF page in half (into two pages)
• Login to Google Docs – 2 factor authentication
• Google Docs error 403.4 SSL required
• Google Docs “files must be uploaded using the resumable upload mechanism”
• Sharepoint Login

Digital Signatures

• What Timestamp Servers to Use when Signing PDF Documents
• “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

Fonts

• Undefined Chinese Japanese and Korean Characters under PDF Bookmarks
• Fonts not showing up in properties list
• How to manually install fonts on Linux and identify missing fonts
• Non-Latin characters in form fields
• Unicode characters

Header / Footer / Watermarks

• How to avoid overlap between a header / footer and the page content in a PDF
• Adding Watermarks to PDFs
• Adding Headers & Footers to PDFs
• Bates Numbering in PDF Studio
• How to add page numbers in a PDF document

Interactive Forms

• XFA Forms Deprecated in PDF 2.0
• Simple example of JavaScript to calculate time difference in a PDF in hours and minutes
• How Do I Size Form Fields when Designing an Interactive Form?
• How to create a button in a PDF form to send an email with form attached
• Set field calculation order

Layers

• How to change the color of a PDF
• Deleting Layers in a PDF Document
• Import PDF document as a layer
• How to add comments to a specific layer in PDF Studio
• Create a new layer in a PDF document

Merge / Split

• Split a PDF Document using Advanced Options
• How Do I Create a PDF Document from Image Files that are Already Scanned?
• Append multiple documents to current PDF document
• Split a scanned PDF page in half (into two pages)
• Appending documents to a PDF

OCR

• How Do I OCR PDF Documents in PDF Studio?
• Video: How to OCR a PDF in PDF Studio
• New Fix Scan Tool
• How to manually install OCR languages
• “Discard invisible text” option in PDF Studio

Optimizing PDFs

• How Can I Reduce the File Size of Documents using PDF Studio
• New Fix Scan Tool
• Generating results log when optimizing
• Optimize PDF in PDF Studio (Video)
• Keep text quality when optimizing scanned PDF documents

Page Manipulation Crop / Rotation

• Label Pages using Roman Numerals, AlphaNumerics and other Styles in PDF Studio
• How to Resize Pages in a PDF document using PDF Studio for Windows, Mac and Linux
• Move, Cut, Copy, and Paste PDF Pages using the thumbnail pane
• Rotate Pages

PDF Format

• Standard PDF Tag Types
• Why doesn’t PDF Cropping change the file size of the PDF?
• Standard 14 PDF Fonts

PDF Reader

• Vote for PDF Studio Viewer as the best Linux PDF Reader on slant.co

PDF Sub Formats

• PDF Studio Accessibility Reading Features
• PDF Studio Support for PDF User Accessibility (PDF/UA)
• What is PDF/UA or ADA Compliance
• How can you tell if a PDF document has any transparency?
• How to embed fonts in a PDF document

Printing PDFs

• Option to Print As Image under Print dialog
• Split Print button to switch between PDF Studio Print dialog & native OS Print dialog
• Option to print selected pages from the thumbnails pane directly
• Collated printing in PDF Studio
• “No print service found” on MAC

Prepress / Preflight

• Clear PDF/A Tag from blue PDF/A banner
• Advanced PDF Imposition & Printer Marks
• How can you tell if a PDF document has any transparency?
• Output Preview and Overprint Simulation
• Comparison of PDF/A Tools: User/ Desktop/ Developer / SDK

Redacting PDFs

• Why Redaction is BETTER than Pixelating or Blurring
• Redacting Form Fields and Annotations in a PDF
• Checking if Your PDF Document is Redacted Correctly
• How to Properly Redact a PDF on Windows, Mac or Linux
• What is PDF Redaction?

Text Markups

• Turn On / Turn Off Copy Text Option in Text Highlights & Text Markups
• Mac Preview text highlights / markups not being displayed
• Remove “Bubble” / Sticky Note Icon next to Text Markups
• My Comments & Recent Comments Tool Chest
• Replace Text and Insert Text Caret Annotations

Touch Mode

• Changing the toolbar icon sizes
• Touch Mode for Tablets Including the Windows Surface!
• Change Menu Font Sizes on Windows Surface Pro
• How to tab through PDF Interactive Form Fields on Windows 8 & Windows 10 Touch Screens
• Edit / Annotate PDFs on Windows 10 and Surface Pro Tablets

Scan-To-PDF

• Duplex (2-sided) scanning on Linux in Scan-to-PDF
• Troubleshooting scanning problems in Linux
• Troubleshooting scanning problems in MAC
• Troubleshooting scanning problems in Windows
• New Linux scanning interface, including Scanning Profiles

Security

• CVE-2021-44228 – Apache Log4j Vulnerability
• 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

Videos

• Video: How to OCR a PDF in PDF Studio
• Optimize PDF in PDF Studio (Video)
• Assemble PDF Documents (4 Videos)
• PDF Studio 7 Introduction Video
• Video: Digitally Sign PDF Documents

In the News

• CVE-2021-44228 – Apache Log4j Vulnerability
• Qoppa’s PDF Editor Apple M1 ARM Chip Support
• PDF Studio receives SourceForge Leader Award
• Crozdesk awards PDF Studio Quality Choice Award
• PDF Editor Reviewed by Linux Magazine Italy

General

• Features that Moved from PDF Studio Pro to Standard in 2021
• CVE-2021-44228 – Apache Log4j Vulnerability
• PDF Editor Current Discount & Promo Coupon Code
• How to Convert a PowerPoint into a PDF?
• Third-Party Download Sites

Customer Feedback

• Features present in PDF Studio lacking in Adobe Acrobat XI
• Excellent Adobe Acrobat alternative for Mac
• PDF Studio is the only Linux PDF Viewer with “Print Current View” for printing PDF documents

Archive

• PDF Studio 11 Change Log
• How to resolve Java SE 6 runtime message on Mac OSX 10.10 Yosemite & 10.11 El Capitan
• LiveCycle Dynamic XFA forms

Misc

• Set a document to open in full screen mode
• Restore last page and view when reopening a PDF
• 4K Monitor Support (High DPI Displays)
• Is PDF Studio vulnerable as a Java application?
• Undo