Apps similar to Lumin PDF include SumatraPDF, which is free and open source. Other options are Okular, Foxit PDF Reader, PDF-XChange Editor and PDF24 Creator. PDF Editors like Lumin PDF are a crowded field, with more than 50 alternatives for Windows, Mac, the web, Android and iPad.
Orenvo PDF is a lightweight toolkit for the document jobs that interrupt everyday work: merging PDFs, compressing oversized files, creating PDFs from images, and converting between image formats.
Germany
EU
Free set of online tools for handling PDF files. Convert and edit your PDF files with incredible ease and speed!
United States
PDF editor for Android with zero INTERNET permission - check it yourself in Settings > Apps > Permissions. No paywall: every feature is free.
Nux Convert is an all-in-one, privacy-focused web app for file conversion, compression, and AI-powered editing, with all processing done 100% locally in your browser.
Onionskin is PDF markup software for engineers, builders and architects who review and markup drawing sets every day.
Australia
Automate Revit sheet-set publishing — batch-export sheets to PDF, DWG, DWF and IFC with reusable configs and smart, parameter-driven filenames.
QuickerConvert is a lightweight PDF toolkit designed for people who want fast results without any complications. It focuses on something many PDF websites ignore. Privacy. Every action you take happens inside your own browser.
Quality-control software for architectural drawing sets - mark up issues, assign fixes, verify and close, with a full audit trail.
Free browser-based tools for PDF, image & data processing. 100% client-side - your files never leave your device. No limits, no watermarks.
EdgeDocs is a free, privacy-first PDF toolkit that processes files 100% in your browser. Merge, split, compress, redact, edit, and convert PDFs without your files ever leaving your device — no uploads, no servers, no tracking. Works offline, no install required.
A powerful, privacy-respecting PDF editor built for Linux users. Edit, annotate, merge, and manage PDF documents—without subscriptions or cloud dependencies.
United States
United Arab Emirates
