LinuXPDF

LinXPDF - Professional PDF Editing for Linux

**Native Linux PDF editing, OCR, forms, signatures, standards validation, document comparison, batch tools, and professional document workflows - in one dark, Linux Mint-inspired desktop application.**

LinXPDF is a full-featured native PDF viewer and editor built for Linux users who need substantially more than basic page viewing. It combines everyday PDF editing with professional tools for content manipulation, forms, OCR, redaction, digital signatures, PDF/A and PDF/UA workflows, document comparison, optimization, conversion, accessibility, layers, attachments, and automation.

Unlike browser-based PDF services, LinXPDF is designed around local desktop workflows. Core editing, OCR, optimization, comparison, and standards validation can run offline. The Debian package includes its private PDF runtime, qpdf tools, Tesseract OCR, OpenSSL support, OpenJDK, and veraPDF Greenfield validation components.

A Real PDF Editor - Not Just a Viewer

Open existing PDFs and work directly with pages, annotations, text, images, vector objects, forms, links, bookmarks, layers, attachments, and document metadata.

LinXPDF includes:

- Multi-tab PDF viewing with thumbnails, search, navigation, zoom, print support, recent files, and password-protected document handling

- Insert, delete, rotate, reorder, crop, resize, extract, split, merge, and duplicate pages

- Undo/redo, validated working copies, crash recovery, atomic save, and external-change protection

- Rich text boxes with embedded Unicode fonts, alignment, wrapping, line spacing, character spacing, paragraph spacing, indentation, colors, and automatic fit

- Existing-text replacement with conservative direct rewriting when safe and geometry-backed editing when a PDF uses more complex font structures

- Image insertion, replacement, crop, rotation, flip, opacity, move/resize, copy, duplicate, delete, and nested Form XObject occurrence handling

- Conservative vector-object discovery, styling, transforms, copy/duplicate, z-order, and unique nested Form-instance editing

- Multi-object selection, alignment, distribution, group movement, direct manipulation handles, keyboard nudging, copy/paste, duplicate, and object ordering

Professional Annotation and Review Tools

Create and manage:

- Sticky notes and comments

- Highlights, underlines, and strikeouts

- Rectangles, ellipses, lines, arrows, polygons, callouts, and freehand ink

- Standard text stamps, custom image stamps, and dynamic date/time/user/page-number stamp templates

- Editable annotation geometry and appearance

- Multi-stroke ink with stroke editing

- Annotation navigation, property editing, and flattening

Bookmarks, Links, and Navigation

Build and maintain professional navigation structures with:

- Bookmark creation, editing, deletion, hierarchy, reordering, and page destinations

- Automatic bookmark generation from tagged headings

- Bookmark JSON import/export

- Split-at-bookmark workflows

- Internal links, web links, mail links, external-file links, and named destinations

- Named-destination management across legacy and modern PDF destination structures

Interactive PDF Forms

LinXPDF provides real AcroForm authoring and editing for:

- Text fields

- Checkboxes

- True grouped radio buttons

- Combo boxes and list boxes

- Push buttons

- Signature placeholders

- Field positioning and resizing

- Required/read-only settings

- Choice/export values

- Tab order

- Document-wide calculation order

- Calculation, validation, format, keystroke, focus, blur, and activation JavaScript actions

- Review-first automatic form-field detection

LinXPDF preserves authored PDF JavaScript but does not execute document JavaScript internally.

Offline OCR and Scanned-Document Workflows

Turn image-only scans into searchable PDFs without sending documents to an online service.

Features include:

- Tesseract OCR with bundled English and orientation data

- Current-page, selected-page, all-page, and drag-region OCR

- Searchable invisible text layers

- OCR review and correction before embedding

- Confidence controls and page-segmentation modes

- Contrast cleanup, background cleanup, deskew, and orientation handling

- Enhanced recognition-only text-edge sharpening, local adaptive thresholding, and isolated-speckle cleanup for faded, unevenly lit, yellowed, shadowed, or dirty scans

- Reconstructed OCR paragraphs and table geometry

- Table export to CSV

- Reconstructed paragraph/table export to HTML

- Optional additional Tesseract language data

- Linux SANE/scanimage acquisition for compatible configured scanners

Secure Redaction and Privacy Tools

LinXPDF includes destructive redaction rather than simply placing a black box over sensitive information.

Use it for:

- Selected-text redaction

- Rectangle redaction

- Find-and-redact workflows

- Rasterized secure page rebuilding

- Metadata and XMP cleanup

- Embedded-file removal

- JavaScript/action cleanup

- Form-value cleanup

- Comment/markup removal

- Thumbnail/private application-data cleanup

- Document sanitization reports

Encryption, Digital Signatures, Timestamps, and LTV

Professional security workflows include:

- AES-256 PDF password security and permissions

- Owner-authorized security removal

- Digital certificate signing and signature verification

- RFC 3161 trusted document timestamps

- DSS/VRI long-term validation evidence handling

- LTV evidence embedding

- PAdES/LTA assessment and archive-style evidence renewal workflows

- Offline signature/evidence inspection where possible

External trust services, certificates, OCSP/CRL endpoints, and timestamp authorities remain controlled by the user and their trust infrastructure.

PDF/A and PDF/UA Workflows with veraPDF

LinXPDF includes offline **veraPDF Greenfield 1.30.2** validation through a bundled private OpenJDK runtime.

Standards tooling includes:

- PDF/A-2b archival conversion

- PDF/A readiness/preflight

- PDF/UA-1 and PDF/UA-2 preparation for already semantically tagged documents

- Accessibility/tag-tree inspection

- Safe reading-order changes

- Structure/alt-text editing

- Independent veraPDF validation

- Exportable validation reports

- Fail-closed conformance reporting - LinXPDF does not call a document compliant when independent validation fails or has not run

Optimize, Convert, and Export

Reduce file size or move content into other workflows:

- Lossless/structural, balanced, smaller-file, and custom optimization presets

- JPEG recompression and placement-aware downsampling

- Exact duplicate-image consolidation, including nested resource trees

- Flate/content-stream recompression

- Object stream and unreferenced-resource cleanup

- Optional metadata, attachment, thumbnail, private-data, and annotation cleanup

- Images to PDF

- PDF pages to PNG, JPEG, TIFF, or BMP

- Embedded-image extraction

- UTF-8 text export

- Page-range PDF extraction

Headers, Footers, Watermarks, Page Numbers, and Bates Numbering

Create managed document-mark batches with:

- Headers and footers

- Page numbering

- First/odd/even page variants

- Text and image watermarks

- Position, margins, rotation, opacity, scale, foreground/background placement

- Bates numbering with prefix, suffix, starting number, and padding

- Reusable presets

- Safe replace/remove management for LinXPDF-created mark batches

Compare Documents

Compare two PDFs side by side with:

- Synchronized document review

- Text differences

- Page-count and geometry differences

- Visual/raster differences

- Overlay and blink modes

- Previous/next difference navigation

- Ignore options

- Exportable HTML comparison reports

## Layers, Attachments, Accessibility, and Advanced Content

Professional document tools include:

- Optional Content Group/PDF layer visibility, creation, rename, reorder, safe delete, and merge

- Attachment management

- Tagged structure and accessibility inspection

- Reconstructed third-party text/vector program inventory

- Conservative transforms and unique nested Form-instance handling

- Named destinations

- Advanced bookmark automation

- PDF/A/PDF/UA readiness tools

- PAdES/LTA assessment

Batch Processing and CLI

For repetitive jobs, LinXPDF includes:

- Saved batch presets

- Batch document workflows

- Command-line optimization

- Command-line sanitization

- Command-line PDF page image export

- Saved workspaces

- Movable/show-hide toolbars and docks

Designed for Linux

LinXPDF uses a dark Linux Mint/Mint-Y-inspired interface with charcoal work surfaces and Mint-green selection and focus accents. PDF page colors are not altered by the dark application theme.

The Debian release is designed to be self-contained and offline-friendly. It bundles the private application runtime and professional validation/OCR components rather than requiring users to assemble a large dependency stack manually.

Licensing and Support

**Copyright © 2026 Michael Toledo. All rights reserved.**

LinXPDF is proprietary software and may not be redistributed without prior written permission from Michael Toledo.

Separately licensed third-party components - including veraPDF and OpenJDK - retain the copying, modification, and redistribution rights granted by their own licenses. LinXPDF's proprietary no-redistribution terms do not override those third-party rights.

**Contact:** craptopgamingadvice@gmail.com