Developer API

Process PDFs from your code

The same tools that power AXS PDF, available as simple HTTP endpoints. Send a file, get a file back. No SDK required.

One API key

Authenticate with the x-api-key header.

Just HTTP

Standard multipart uploads. Works from any language.

File in, file out

Responses stream the resulting PDF (or a ZIP for multi-file output).

Quick start

Try it now with the demo key axs_demo_key:

curl -X POST https://axspdf.com/api/v1/merge-pdf \
  -H "x-api-key: axs_demo_key" \
  -F "files=@a.pdf" \
  -F "files=@b.pdf" \
  -o merged.pdf

Endpoints

Method	Endpoint	Description	Body
POST	/api/v1/merge-pdf	Merge multiple PDFs into one	files[]
POST	/api/v1/split-pdf	Split a PDF (mode=each\|range, from, to)	file
POST	/api/v1/rotate-pdf	Rotate pages (angle=90\|180\|270)	file
POST	/api/v1/compress-pdf	Reduce PDF size	file
POST	/api/v1/remove-pages	Remove pages (pages=1,3,5-8)	file
POST	/api/v1/extract-pages	Extract pages (pages=1,3,5-8)	file
POST	/api/v1/add-page-numbers	Add page numbers (position=...)	file
POST	/api/v1/add-watermark	Stamp a watermark (text=...)	file
POST	/api/v1/jpg-to-pdf	Convert images to a PDF	files[]
POST	/api/v1/protect-pdf	Password-protect a PDF (password=...)	file
POST	/api/v1/unlock-pdf	Remove a password (password=...)	file

Authentication

Send your key in the x-api-key header (or as a Bearer token). Production keys will be issued from your account dashboard on Business plans. Requests without a valid key return 401.

Need higher limits?

Contact office@axslearning.ro for a production API key and volume pricing.