FAQ

No. All tools are free, with no account, no limits and no watermark in the result.

No. Everything runs locally in your browser. Details and instructions for verifying it are in “Privacy & how it works”.

The other tools cannot process protected files; the error reads “The PDF is password-protected”. Unlock the file first with the “Decrypt PDF” tool (you need to know the password) and then use the new file.

The file cannot be read. Check whether it opens in other applications and whether the download was complete. Sometimes re-saving or printing it to PDF there helps.

Because everything happens in your device’s memory, very large files are critical on phones. Close other tabs, use a computer, or first split the file into smaller parts with the “Split PDF” tool.

This happens with the “Maximum” level because the pages become images. Choose “Light”, “Balanced” or “Strong” if the text should stay selectable.

Current versions of Chrome, Edge, Firefox and Safari on computers, phones and tablets. The eyedropper in the color picker is only available in browsers that offer the EyeDropper API (e.g. Chrome and Edge).

No. qPDF only reads the file and always creates a new file for you to download.