PDF4QT 1.6.0.0

PDF4QT is a free and open-source application created to provide a complete solution for working with PDF documents in a simple, flexible, and effective way. It offers all the essential tools you need to handle your files: you can view PDFs with smooth navigation, edit content, annotate pages, and highlight key sections for better collaboration. It also allows you to compare two versions of a document, making it easy to spot changes. Built-in security features give you control over protecting sensitive information and managing access.

Applications

• PDF4QT Viewer Profi: Advanced PDF browsing with encryption, digital signature verification, annotation editing, regex text search, page-to-image conversion, and plugin support.
• PDF4QT Viewer Lite: Lightweight viewer with essential, user-friendly PDF viewing functions.
• PDF4QT DocPage Organizer: Merge, split, move, clone, or add pages easily with an intuitive interface.
• PDF4QT DocDiff: Compare two PDFs, highlight differences page-to-page, and export results to XML.

Key Features

• Multithreading Support for faster PDF processing
• Hardware Accelerated Rendering for smooth, high-quality display
• Encryption to secure documents
• Color Management to preserve accurate color profiles
• Optional Content Handling to control visibility of content
• Text Layout Analysis for better text extraction and editing
• Signature Validation for verifying digital signatures
• Annotations and Form Filling for interactivity
• Text-to-Speech Conversion to listen to PDFs
• Advanced Annotation Tools (images, text, etc.)
• File Attachments Management to view and save attachments
• Optimization to reduce file size without losing quality
• Command Line Tool for automation
• Audio Book Conversion from PDFs
• Internal Structure Inspector to explore PDF structure
• Compare Documents to detect differences
• Redaction to remove sensitive information
• Document Signing for digital authentication

PDF4QT 1.6.0.0 release notes:

• PDF4QT 1.6.0.0 brings a major image compression and optimization update, especially for PageMaster and assembled output documents. Image compression is now integrated into the assembly/export workflow, backed by new optimizer infrastructure, UI controls, feedback fixes, and tests. This should make PageMaster much more useful for producing smaller output PDFs directly from assembled or reorganized documents.
• The release also contains a large PageMaster refresh with improved drag and drop, recent files, crop pages, save/restore functionality, rotation and size indicators, a reworked icon set, and faster output preview rendering. Viewer and Editor workflows were improved with wildcard Advanced Find, Enter-to-search behavior, better outline keyboard selection, startup settings, fullscreen support, side-to-side scrolling, smoother scrolling, text selection, snapping, and expanded annotation controls.
• Compatibility and platform behavior were improved as well, including fixes for embedded files, fonts, checkboxes, invisible text, menu colors, highlights, XMP metadata, Windows color management, AppImage packaging, MSIX generation, installer behavior, translations, and newer compiler/Qt warnings. The commit history also includes a new scan-and-edit plugin foundation and color management performance work.

Changelog:

Highlights

• Image compression for PageMaster / DocPage Organizer and assembled output documents (#92)
• Major PageMaster UX refresh, including drag and drop, recent files, crop pages, save/restore, icons, and output preview performance (#383, #18)
• Improved image optimization feedback, including final resolution and DPI updates (#384)
• Better Viewer and Editor navigation: fullscreen, side-to-side scrolling, smoother scrolling, text selection, snapping, and outline keyboard selection (#242, #368, #136, #321, #250, #373)
• Advanced Find wildcard mode and Enter-to-search behavior (#379, #378)
• PDF compatibility fixes for embedded files, fonts, checkboxes, invisible text, form content suppression, and Windows color management (#225, #356, #256, #230, #326, #224, #385, #388)
• Startup settings, custom settings directory support, Linux double-click viewer separation, and packaging/build fixes (#382, #380, #381)
• Scan-and-edit plugin foundation and broader translation updates from the 1.6.0.0 development cycle

Resolved Issues

• Issue #389: Adding hyperlink to internal object in PDF
• Issue #388: Update Windows color management system
• Issue #385: PDFTextLayoutGenerator::isContentKindSuppressed(ContentKind kind) is missing ContentKind::Form
• Issue #384: In the "Optimize Images" dialog, the info on the final image resolution and final DPI does not update
• Issue #383: UX improvements for PDF4QT PageMaster tool (v1.5.3.1) (ex. DocPage Organizer)
• Issue #382: Startup Settings
• Issue #381: Separated apps for double-click viewer in Linux
• Issue #380: Ability to run app with custom settings directory - executable parameter with path
• Issue #379: Advanced Find - Wildcard Mode
• Issue #378: Advanced Find - Should start searching if Enter key is pressed
• Issue #376: Deleting a note jumps to Outline
• Issue #375: Not enough maximum compiled page cache
• Issue #373: Ctrl/Shift keyboard selection for Outline
• Issue #372: Option to not color images
• Issue #370: Extracting pages within a range
• Issue #369: Keeping redact box on
• Issue #368: Side-to-side scrolling
• Issue #357: Bulk delete/add/edit of page labels
• Issue #356: Compatibility issues - font problems
• Issue #354: Color blend mode for highlights
• Issue #352: Icon size of the sidebar
• Issue #349: Add inherit zoom to bookmark zoom options
• Issue #338: Editor toolbox higher than editor window
• Issue #334: Impossible to set French language
• Issue #326: Checkboxes don't render in PDF4QT
• Issue #324: Menu text not rendered with correct color
• Issue #321: Select text in Viewer
• Issue #291: Support for editing XMP metadata or exporting to PDF/UA format
• Issue #282: Editor outline view: always zooms to around 50%
• Issue #256: PDF4QT cannot show some specific fonts correctly
• Issue #253: Undo/redo doesn't work in "edit page content" mode
• Issue #250: Snapping
• Issue #242: Full screen
• Issue #234: Setting font, font size and area of text annotations
• Issue #230: Garbled characters when opening PDF files with PDF4QT
• Issue #225: PDF4QT cannot open PDF files with embedded files
• Issue #224: Option to remove invisible text
• Issue #194: Change page size
• Issue #160: Color | Custom (green/black) does not work
• Issue #136: Smooth scrolling of document with mouse middle wheel - flywheel
• Issue #92: Add image compression to PDF DocPage Organizer
• Issue #18: Performance optimization - OutputPreview Renderer

Download: PDF4QT 1.6.0.0 | Portable | ~30.0 MB (Open Source)
Download: PDF4QT MSIX | 29.4 MB
Links: PDF4QT Home Page | PDF4QT @GitHub | Screenshot

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