How to simply add images
to any PDF document
How to fill and sign PDF forms online for free
How to type in a PDF
in 5 simple steps
Secure your PDF documents instantly from your iPhone or Android browser.
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Open your mobile browser (Chrome or Safari) and go to PDFSimpli's 'Protect PDF' tool. Tap to upload your file from your phone's storage or cloud drive, enter a secure password, and tap 'Protect.' You can download the locked file directly to your device immediately.
Yes. PDFSimpli is a web-based platform, meaning it is fully compatible with iOS and Android. You don't need to visit the App Store or Play Store; the entire process happens in your web browser.
Absolutely. Save the email attachment to your phone's 'Files' or 'Downloads' folder, then upload it to our tool. Once you've added the password, you can re-attach the new secure version to an email reply.
Yes. PDFSimpli uses the same high-level SSL encryption on mobile as it does on desktop. We ensure your document is encrypted during the process and automatically delete it from our servers once you are finished.
How to simply add images
to any PDF document
How to fill and sign PDF forms online for free
How to type in a PDF
in 5 simple steps