Orenvo PDF — Free, offline PDF tools for desktop and Android
Orenvo PDF is a lightweight toolkit for merging PDFs, compressing large documents, creating PDFs from images, and converting images between common formats. Processing happens locally on your device — your files are not uploaded.
Free forever. No account, no watermark, no daily limit, and no subscription.
What you can do
Image to PDF — turn JPG, PNG, WebP, BMP, or TIFF images into one ordered PDF, with custom page sizes.
Merge PDFs — combine multiple PDFs in the order you choose.
Compress PDF — reduce file size with adjustable compression and a size estimate before export.
Image Converter — batch-convert JPG, PNG, and WebP files.
Also includes dark/light themes, accent colors, multilingual UI, mobile-friendly file picking, and a clear save confirmation after every export.
Platforms
Windows: x64 installer
macOS: Apple Silicon and Intel builds
Android: one universal APK for arm64-v8a, armeabi-v7a, x86, and x86_64
The Android build supports Android 7.0 and newer. For the simplest installation, download the universal APK included with this project.
Privacy first
Supported PDF and image processing runs entirely on your device. Your documents never leave your computer during conversion.
Installing
Independent desktop apps may show a first-run security warning because the installers are not code-signed yet.
Windows: choose More info → Run anyway in SmartScreen when you downloaded this project from the official KenoLabs or GitHub page.
macOS: move the app to Applications. If Gatekeeper blocks it, right-click the app and choose Open. If macOS still reports the app as damaged, open Terminal and run: xattr -cr "/Applications/Orenvo PDF.app" && open "/Applications/Orenvo PDF.app"
Android: allow installation from your browser or file manager when Android asks, then open the APK.
Download and support
Use the files attached to this itch.io project, or visit kenolabs.dev/orenvo-pdf for the latest release links.
Orenvo PDF is free. If it saves you time, you can support development through Ko-fi.
Questions or bug reports: support@kenolabs.dev