Terms of Service

Last updated: March 28, 2026

These Terms of Service ("Terms") govern your access to and use of PDF4's website, APIs, and related services (collectively, the "Service"). By accessing or using the Service, you agree to be bound by these Terms.

1. Account Registration

To use most features of the Service, you must create an account. You agree to:

• Provide accurate and complete registration information
• Maintain the security of your account credentials and API keys
• Promptly notify us of any unauthorized use of your account
• Accept responsibility for all activity that occurs under your account

2. Service Description

PDF4 provides PDF processing services including document conversion, extraction, manipulation, merging, splitting, compression, and AI-powered document analysis. The Service is available through a web interface and REST API.

3. Credits and Billing

• The Service operates on a credit-based billing system. Each API operation consumes a specified number of credits.
• New accounts receive a complimentary allocation of credits upon registration.
• Credits may be purchased at any time on a pay-what-you-want basis. Purchased credits do not expire.
• Credits are non-refundable and non-transferable unless otherwise required by law.
• We reserve the right to modify credit pricing and consumption rates with reasonable notice.

4. Acceptable Use

You agree not to use the Service to:

• Upload or process files containing malware, viruses, or malicious code
• Attempt to circumvent rate limits, authentication, or security measures
• Process documents that violate applicable laws or third-party rights
• Resell or redistribute the Service without written authorization
• Reverse-engineer, decompile, or disassemble any part of the Service
• Use the Service in a way that impairs its availability for other users

5. Your Content

You retain all rights to the files and documents you upload to the Service. By uploading content, you grant us a limited, temporary license to process that content solely for the purpose of providing the Service. We do not claim ownership of your content and do not use uploaded files for any purpose other than fulfilling your processing requests.

6. API Usage

• API access is subject to rate limits as described in our API documentation.
• API keys are confidential and must not be shared or exposed in client-side code.
• We may suspend API access if we detect abuse, excessive error rates, or violations of these Terms.

7. Service Availability

We strive to maintain high availability but do not guarantee uninterrupted access to the Service. We may perform maintenance, updates, or modifications that temporarily affect availability. We will make reasonable efforts to provide advance notice of scheduled downtime.

8. Limitation of Liability

To the maximum extent permitted by law, PDF4 shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of data, revenue, or profits, arising from your use of the Service. Our total liability for any claims arising from the Service shall not exceed the amount you paid us in the 12 months preceding the claim.

9. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, whether express or implied, including warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the Service will be error-free or that document conversions will be perfectly accurate.

10. Termination

You may close your account at any time. We may suspend or terminate your access to the Service if you violate these Terms, engage in abusive behavior, or fail to pay for purchased services. Upon termination, your right to use the Service ceases immediately.

11. Changes to Terms

We may update these Terms from time to time. We will notify you of material changes by posting the updated Terms on this page and updating the "Last updated" date. Your continued use of the Service after changes become effective constitutes acceptance of the revised Terms.

12. Governing Law

These Terms are governed by the laws of the jurisdiction in which PDF4 operates, without regard to conflict of law provisions.

13. Contact

If you have questions about these Terms, please contact us at legal@pdf4.net.