Key Privacy Promise

We do not require accounts, and all uploaded PDFs are automatically deleted after 10 minutes. We collect only minimal operational data needed to keep the service running reliably.

Information We Do NOT Collect

ThinPDF is designed with privacy-first principles. We explicitly do not collect, store, or retain:

Personal information (names, email addresses, phone numbers)
Account information (we don't require accounts)
PDF file contents or document metadata
Passwords you enter for PDF protection or unlocking
Payment or financial information

Automatically Collected Information

To operate the service reliably and monitor for issues, we collect limited operational data through server logs:

Server Logs

IP address: Used to identify abuse and troubleshoot errors
Browser and device type (user agent): Helps us ensure compatibility across devices
Page visited (request path): Helps us understand which tools are most used
Referring page: Helps us understand how users find ThinPDF
File size: Logged when you upload a file, used to diagnose processing failures
Operation type and result: Whether a compression, merge, conversion, protection, or unlock succeeded or failed

This data is used solely for service operation, error diagnosis, and basic usage metrics. We do not sell, share, or use this data for advertising, profiling, or tracking across other websites. Server logs are retained for a limited period and are not linked to individual identities.

How We Handle Your Files

Temporary Processing Only

Upload: Your PDF is temporarily stored on our server for processing
Processing: Your file is processed using industry-standard algorithms
Download: The processed file is made available for download
Automatic Deletion: Both original and processed files are permanently deleted after 10 minutes

We do not read, analyze, or inspect the contents of your PDF files. Processing is fully automated with no human review.

Important Notice

Files are automatically deleted after 10 minutes. Please download your processed PDF promptly as we cannot recover deleted files.

How We Use Your Data

The operational data we collect is used exclusively to:

Keep the service running: Monitor server health and diagnose errors
Prevent abuse: Detect and block malicious activity or excessive usage
Improve the service: Understand which tools are popular and where users encounter problems

We do not use this data for advertising, do not build user profiles, and do not share it with third parties for marketing purposes.

Security Measures

We implement several security measures to protect your files and data:

Secure HTTPS encryption for all data transmission
Temporary file storage with automatic cleanup after 10 minutes
No backup or archival of uploaded files
Server-side validation to prevent malicious uploads
Regular security updates and maintenance

Third-Party Services

ThinPDF uses the following third-party services:

Google AdSense: Displays advertisements to support the free service. Google may use cookies and collect data according to its own Privacy Policy
Google Fonts: Loads web fonts for page display. Google may log font requests per its privacy policy
Web Hosting: Our hosting provider may collect standard server access logs
Buy Me a Coffee: External donation platform, used only if you choose to donate

Cookies

ThinPDF itself does not set cookies. However, third-party services such as Google AdSense may set cookies on your browser for ad personalization and measurement. You can manage cookie preferences through your browser settings or through the consent management tool that may appear on your first visit.

Your Rights

Depending on your jurisdiction, you may have the right to:

Access: Request information about what data we hold about you
Deletion: Request deletion of any data associated with you
Opt-out: Manage your cookie and ad preferences through browser settings

Since we collect minimal data and do not create user accounts, there is very little data that could be associated with any individual. If you have concerns, please contact us.

Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. We encourage you to review this policy periodically.

Contact Us

If you have questions about this Privacy Policy, please visit our Contact page or email us at support@thinpdf.com.

This privacy policy reflects our commitment to transparency and data minimization. We collect only what is necessary to operate a reliable, free service.