REST API

A REST endpoint for every document operation.

One consistent HTTP API for every document operation. Authenticate with an API key and call it from any language or runtime.

API reference Browse categories

One call

Send a document, get one back.

Consistent shape. Every action takes a base64 document and JSON options, and returns the processed file.
Any language. Plain HTTPS with an API key header. No SDK required, though libraries exist.
Async ready. Long jobs return a status URL you can poll until the result is ready.

convert-to-pdf.sh

curl -X POST https://api.pdf4me.com/api/v2/ConvertToPdf \
  -H "Authorization: Basic YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "docContent": "<base64 file>",
    "docName": "input.docx"
  }'

The reference

15 categories, 100+ endpoints.

Open a category to see its endpoints, each with a description and a link to the docs.

13 endpoints

Convert

Move between formats

Turn Word, Excel, PowerPoint, HTML, Markdown, images and 50+ formats into PDF, and PDFs back into editable documents. Create archival PDF/A, flatten or linearize for the web.

7 endpoints

Edit

Change a finished PDF

Change a finished PDF without the source file: add headers, footers and page numbers, apply signatures, stamps and watermarks, adjust margins or embed attachments.

6 endpoints

Merge & Split

Combine and separate

Combine documents into one file or overlay them, then split by page range, page count, text pattern, barcode or Swiss QR marker.

1 endpoint

Optimize

Shrink and speed up

Reduce PDF file size with configurable compression while keeping the document readable and print-ready.

5 endpoints

Organize

Reorder and clean up pages

Reorder and clean up pages: remove blank or specific pages, extract a subset into a new document, and rotate whole documents or single pages.

5 endpoints

Barcode

Barcodes, QR and Swiss QR

Add, read and create barcodes and QR codes: embed 50+ barcode types into PDFs, decode them back out, generate standalone codes, and handle Swiss QR payment bills end to end.

2 endpoints