Nutrient DWS Processor API is an HTTP API that lets you modify your PDF files. Use our PDF editor API to merge, split, delete, flatten, and duplicate PDF documents.
Select large files and merge them all into one document with our merge PDF API.
Select pages from an existing PDF file and create a new document.
Make a copy of a page in a PDF document using our duplicate PDF page API.
Remove a page or pages from a PDF with our PDF page deletion API.
Flatten preexisting annotations in PDF files to prevent unauthorized edits.
Rotate a single PDF page or all PDF pages with our PDF rotate API.
Add blank pages to a PDF with a flexible PDF API.
Add or update PDF page labels with a flexible PDF API.
Import annotations, form fields, and form values into your PDF documents with our Instant JSON API.
Import annotations, form fields, and form values into your PDF documents with our XFDF API.
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A PDF editor API lets you modify PDF documents programmatically over a REST endpoint instead of editing them by hand. Nutrient DWS Processor API is an HTTP API that can merge, split, delete, flatten, duplicate, and otherwise manipulate PDFs inside your own applications and document workflows.
Yes. You send a PDF and an instruction set to the Processor API over REST, and it returns the edited document — no desktop software or manual steps required. This makes it suitable for automated, high-volume PDF manipulation pipelines.
The PDF editor API supports merging, splitting, deleting pages, duplicating pages, flattening (to lock annotations and forms), and setting page labels — along with the broader set of Processor API document operations.
The API is REST-based, so it works from any language that can make an HTTP request, including JavaScript, Python, Java, PHP, C#, and HTTP (curl). A Postman collection helps you send a first request quickly.
You can start free with Nutrient DWS credits — no credit card required — and test before scaling. See the Processor API pricing page for current credit details.
