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CLUSTER PDF-EDITOR-OPEN · 12 ENTRIES · EARLIEST ENTRY 2023-09-21

Open-source PDF editors

This cluster consists of open-source desktop PDF editors that provide viewing, annotation, form filling, and document creation or editing. The dated entries before the index show a sparse and irregular timeline, with a single entry in July 2020, two in September 2023, and one each in July 2025 and July 2026. Among the products with traction signals, pdfmake-playground leads with 1 star, while the other two members have 0 stars.

Entry timeline

ENTRY TIMELINE

JUL 2014: 1DEC 2016: 1JUL 2020: 1SEP 2023: 2JUL 2025: 1MAY 2026: 1JUL 2026: 1AUG 2026: 4
JUL 2014AUG 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 ai-built · 3 hand-coded · 7 unlabelled

Operator · 2 hobby · 1 indie · 6 open source · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 12 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01DMAS-PDF0★4 days—hobbyA SvelteKit-based PDF editor with improved highlighting, text annotations, and keyboard shortcuts for interactive document editing.
  2. 02open-pdf-studio-bin0★1 moliveopen sourceFree open-source PDF editor and annotator for creating and editing PDF files.
  3. 03pdfmake-playground1★2 moliveai-builthobbyBrowser-based tool for testing PDF generation from JavaScript, with selectable library versions.
  4. 04pdf_editor0★1 mo—A web application for editing PDFs with page management, annotations, and text tools.
  5. 05Edit PDF Document0★4 moliveSimple PDF editor for annotating text and applying formatting to documents on mobile devices.
  6. 06inlinea0★4 moliveopen sourceDesktop application for annotating and marking up PDF documents on Linux systems.
  7. 07pdf4qt0★4 molivehand-codedopen sourceOpen-source PDF editor for viewing and editing PDF documents.
  8. 08pdf4qt-bin0★4 molivehand-codedopen sourceDesktop PDF editor with annotation, form filling, and viewing capabilities from an open-source project.
  9. 09pdf-xchange0★4 molivehand-codedopen sourcePDF editor and viewer for creating, viewing, editing, and annotating PDF documents.
  10. 10openelearning-bin0★6 mostaleliveopen sourceFree open-source elearning editor for creating educational content on Linux.
  11. 11Smart PDF+ Editor0★1 yrabandonedliveindiePDF editor for handwritten ink annotations that lets students and professionals sign, review, annotate, and organize documents.
  12. 12PDF Sketch and Display0★unknownliveai-builtWeb tool that lets users upload a PDF document, add freehand sketch annotations, and view the annotated result.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.