PDF Info#

What It Does#

Inspects a PDF and returns metadata including encryption status, page count, file size, and document properties (title, author, subject, creator).

When to Use#

• Check if a PDF is encrypted before calling unlock
• Pre-flight validation before PDF processing
• Get page count and file size information

Required Inputs#

Provide one of:

• url — URL to a PDF
• base64_pdf — base64-encoded PDF
• Multipart upload with file field

Authentication#

Send your API key in the CLIENT-API-KEY header.

Get your free API key at https://pdfapihub.com. Full API documentation is available at https://pdfapihub.com/docs.

Use Cases#

• Pre-Flight Validation — Check page count and encryption status before processing
• Upload Validation — Verify uploaded PDFs meet requirements (page limit, not encrypted)
• Workflow Routing — Route encrypted PDFs to unlock step, unencrypted directly to processing
• Metadata Display — Show document title, author, and page count in a document management UI
• Quota Checks — Verify page count before merge/split to avoid exceeding limits

Example Usage#

bash

curl -X POST https://pdfapihub.com/api/v1/pdf/info \
  -H "CLIENT-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{ "url": "https://pdfapihub.com/sample.pdf" }'