How to add a password to a PDF on iPhone
PDF Reader Pro provides PDF password tools. Add protection to an authorized document, then reopen the exported file to confirm that the intended password is actually required.
App used in this guide: PDF Reader Pro ↗
Before you begin
Keep a recoverable original and store the password appropriately. A password set on one exported copy does not retroactively protect versions you already emailed or saved elsewhere.
Step by step
- Open the PDF security tool and select the document.
- Enter the password using the offered fields and confirm the operation.
- Close the document and open the protected output again.
- Test access with the password before sharing the file.
Check the result
Send the password through a separate channel when appropriate. Check with the recipient that their reader can open the protected document and that the file is the version you intended to send.
Limits and troubleshooting
Password removal requires legitimate access to the protected content; it is not a password-recovery or bypass feature. If you forget a password, use your retained source rather than assuming the app can recover it.
SpaceNode Free Tools
- 📑 Merge PDFCombine multiple PDF files into one PDF in the order you want. Free, no sign-up, no watermark — files never leave your device.
- ✂️ Split PDFExtract pages from a PDF or split it into several files by page range or one page per file. Free, with page previews — files never leave your device.
- 🗂️ PDF to JPG ConverterConvert every page of a PDF to a JPG or PNG image in your browser. Choose the DPI, save single pages or download all as a ZIP. No upload.
Sources and further reading
Source language may differ
Publisher disclosure: SpaceNode develops the app described here. Screens and options can vary by version, device and region. Manufacturer names identify compatibility and do not imply endorsement.