How to Share PDF Files Online Securely

PDFs are the universal document format — contracts, resumes, reports, presentations. But sharing them securely online can be surprisingly difficult. Email attachments have size limits. Cloud storage requires account creation. And many "free" PDF sharing tools are riddled with ads and tracking.

The Problem with Email Attachments

Most email providers limit attachments to 25MB. PDFs with images, graphics, or scanned pages easily exceed this. Plus, once you email a PDF, it lives forever in both your sent folder and the recipient's inbox — with no way to revoke access.

Why Use fff files for PDFs

• Up to 250MB — handles even large scanned documents
• Auto-delete after 7-90 days — the PDF doesn’t live forever
• Unguessable URLs — download links use random IDs, not sequential numbers
• No account, no email collection — neither you nor the recipient register
• Delete token — you get a unique delete link after upload. Remove the file anytime.

How to Share a PDF on fff files

1. Go to fffiles.com
2. Drag & drop your PDF (or click to browse)
3. Copy the download link
4. Send the link via email, Slack, WhatsApp, or any channel
5. Save the delete link if you want to remove it early

Is It Secure?

Download links use cryptographically random IDs. Nobody can guess your file's URL. Files are encrypted at rest on Cloudflare R2. Your IP address is hashed (SHA-256) for rate limiting only — we never store raw IPs.

That said: anyone with the link can download the file. For truly sensitive documents, add password protection to the PDF itself before uploading.

Share a PDF now →