Unlock Password-Protected PDF Files via API
Remove password protection from encrypted PDF documents via REST API. Upload your protected PDF and the password as multipart/form-data and receive an unlocked, accessible PDF in response.
# Unlock a password-protected PDF
curl -X POST \
https://api.convertfilefast.com/v2/pdf/unlock \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "file=@protected.pdf" \
-F "password=MySecretPassword123" \
--output unlocked.pdf
# HTTP 200 OK — Content-Type: application/pdfAdvantages
Why use our API?
Complete and reliable solution for integration in any tech stack.
Instant Unlocking
Remove PDF password restrictions in seconds. Receive a fully accessible PDF that can be read, printed, and edited.
Simple API Call
Send the file and password as multipart form fields. Get the unlocked PDF binary back in the response. No setup required.
Automation Pipelines
Unlock PDFs automatically in document processing workflows. Ideal for batch processing of protected archives.
n8n Integration
Unlock PDFs as part of n8n workflows triggered by email attachments, Google Drive files, or webhooks.
Batch Unlocking
Process multiple password-protected PDFs in a loop. Unlock an entire archive of documents programmatically.
Zero Storage
All PDFs are processed in memory and deleted immediately after unlocking. Your documents are never stored on our servers.
Start Unlocking PDFs via API
Get your API key and remove PDF password protection in seconds. Free plan includes 10 conversions per month.
No credit card. 10 free conversions on Free plan.