Protect, Seal and Encrypt your PDF files in seconds

Convert your PDF files to secure, sealed and trustable documents. Simple, reliable and safe anytime, anywhere.

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Secure your PDFs

Keep your PDFs safe with strong encryption—simple, reliable, and secure anytime, anywhere.

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Make work reliable

Ensure your work is consistent and trustworthy—make your own work truly reliable sealing your PDF files.

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Guarantee Authenticity

Ensure every file is genuine and untampered—guarantee your document's authenticity and create trustworthy PDFs.

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Malware Free

Eliminate 99.9% of malware from your files in seconds. Clean and secure. Protect PDF files from malware for free.

"Safepdf.org is a project created by cryptography and cybersecurity enthusiasts. This project goal is to make online files trustable, immutable and secure for everyone."
Project Goals

SafePDF is dedicated to making digital documents trustable, immutable, and secure for everyone. Our core objectives are:

  • Guarantee File Integrity Anytime and Anywhere: Ensure that every document remains unaltered and authentic, whether viewed on your device or shared with others.
  • Empower Users with Transparency and Security: Provide a simple, reliable way to verify and protect PDFs without requiring advanced technical knowledge.
  • Protect Privacy by Design: All file processing happens locally or temporarily in memory — we never store, share, or track your documents.
  • Promote Trust in Digital Workflows: Enable individuals and organizations to confidently exchange important files, knowing they can always verify authenticity.
What does SafePDF Protect do?

SafePDF Protect ensures your documents remain secure, authentic, and tamper-evident. Our method includes:

Prevent Copying

Make the text and content of your PDF unable to copy or extract, protecting your intellectual property.

Seal the PDF File

Apply a unique digital mark that includes:

  • A timestamp of when the file was sealed.
  • A brand seal that protects your work.
  • A unique file identifier or hash that guarantees that no change has been done.

Guarantee Integrity

Any attempt to alter the file after sealing it will invalidate the hash, letting recipients instantly verify its authenticity.

Easy Verification

Recipients can check the PDF's seal with SafePDF Verify Method to confirm that the document is genuine and untampered.

What makes SafePDF different?
  • Independent and Non-Corporate: No corporate entity or commercial interest behind SafePDF — we focus solely on providing a free, trustworthy service.
  • Strong Cryptography: We use robust cryptographic methods and unique encryption algorithms that guarantee 100% the integrity and authenticity of your files.
  • Full Transparency: Our processes are open and clearly explained — users can understand how files are sealed, verified, and protected.
  • Temporary In-Memory Processing: Uploaded files are processed entirely in memory and never stored permanently. All data is automatically deleted once the session ends.
  • User-Centric Security: Unlike some other services, SafePDF does not track, share, or monetize your documents. You remain in full control of your files.
Privacy Policy

Data Retention & Deletion: SafePDF does not store user files permanently.

  • When a user uploads a document, it is processed temporarily in memory (or short-term system storage) to perform the requested operation.
  • Uploaded files are automatically deleted once processing is complete or the session ends.
  • No user content is retained, backed up, or shared with third parties.
We use Amazon Web Services (AWS) as our infrastructure provider and Streamlit as our web framework. Both use temporary storage environments; uploaded data does not persist beyond the processing session unless explicitly saved, which SafePDF does not do.