What it does
PDF Toolkit helps you compress, split, merge, rotate, reorder, watermark, flatten, repair, redact, number, and fill PDFs through simple file-based endpoints.
Send a PDF and get a transformed PDF back for most operations, or use the form-field endpoint to inspect fillable fields in a PDF form. The service accepts binary PDF uploads, with specific endpoints also taking structured inputs like page ranges, page rotations, form values, checkbox states, page specs, redaction boxes, and watermark settings.
Use PDF Toolkit when you need to prepare documents for distribution, clean up scanned or damaged files, generate completed forms, or remove sensitive content before sharing. For example, you can merge a set of invoices into one file, add page numbers to a report, flatten a filled form so it can no longer be edited, or permanently redact areas on a contract.
The outputs are direct and predictable: several endpoints return a binary PDF, while form-field listing returns a structured object. That makes PDF Toolkit easy to drop into document workflows, back-office automation, and internal admin tools.