Technical guidance for a structured workflow.

Download and install Orenvo PDF on Windows. Everything runs locally and no account is required.

1. 01Download the Windows x64 installer from the official Orenvo PDF download page.
2. 02Run it. Windows SmartScreen will likely show "Windows protected your PC."
3. 03Click "More info", then click "Run anyway".
4. 04Finish the installer and launch Orenvo PDF from the Start menu.

Download and install Orenvo PDF on macOS. The first launch may need Gatekeeper confirmation because the app is not yet notarized.

1. 01Download the Apple Silicon or Intel .dmg from the official Orenvo PDF page and drag Orenvo PDF into Applications.
2. 02Try to open it — macOS may say it "can't be opened because it is from an unidentified developer" (Gatekeeper).
3. 03Right-click Orenvo PDF in Applications and choose Open.
4. 04Confirm Open in the next dialog.
5. 05If macOS still reports the app as damaged, open Terminal and run: xattr -cr "/Applications/Orenvo PDF.app" && open "/Applications/Orenvo PDF.app"
6. 06Orenvo PDF will open normally. After this first run, it keeps opening as usual.

Install the universal APK on Android 7.0 or newer. One APK includes the common Android CPU architectures.

1. 01Download the universal APK from the official Orenvo PDF download page.
2. 02When Android asks, allow app installation from your browser or file manager.
3. 03Open the downloaded APK and confirm the installation.
4. 04Launch Orenvo PDF and choose a tool from the mobile dashboard.

Combine multiple PDFs into a single file, in the order you choose.

• Add the PDFs you want to combine, then drag to set their order.
• Click Merge to produce a single combined PDF in your chosen output folder.
• Free and unlimited — no daily limits and no watermarks.

Reduce PDF file size while keeping output quality reasonable.

• Select a PDF and choose a compression level.
• Preview the estimated size reduction before exporting.
• Free and unlimited — compress as many PDFs as you need.

Combine JPG, PNG, WebP, BMP, or TIFF images into a single PDF.

• Add one or more images and drag to set page order.
• Choose a page size — including custom sizes — before exporting.
• Free and unlimited — no daily limits and no watermarks.

Batch convert between JPG, PNG, and WebP formats.

• Add a batch of images and choose the target format.
• Convert the full batch in one run.
• Free and unlimited — no daily limits and no watermarks.

Orenvo PDF includes theme, accent color, and output folder settings, plus an About section with version details.

• Switch between dark and light themes and pick an accent color in Settings.
• Set a default output folder so exports always land where you expect.
• Use the localized interface in any of the 10 included languages.
• On Android, the success confirmation stays visible after you choose an output location.
• Check the About section in Settings for the current version and release notes.

Orenvo PDF is free with nothing to unlock.

• If it's useful to you, a coffee helps: ko-fi.com/kenolabs
• Questions or bugs: support@kenolabs.dev
• More from KenoLabs: kenolabs.dev