One tool per task
Merge with tool A, split with tool B, PDF/A with tool C. Three libraries, three APIs, three licences.
Back to overview PDF tools
Merge. Split. Protect. Archive. One API.
Merge PDFs, extract pages, fill forms, add watermarks, set passwords and convert to PDF/A for long-term archiving. All in the same REST API — no extra tools.
1 credit per operation. 100 credits/month free.
Why PDF operations in software are painful
Desktop tools don't scale
Adobe Acrobat, PDFsam, Smallpdf — great for individual files. Not for 500 PDFs per hour from your application.
Cloud services and data privacy
Many PDF tools are US-based cloud services. Uploading business documents there? GDPR risk.
PDF operations via API call
1
Send PDF
Upload one or more PDFs as Base64 or via file upload.
2
Choose operation
Merge, split, rotate, watermark, password, PDF/A, forms — pick the operation you need.
3
Get result
The processed PDF comes back directly as the response. No polling, no callback.
What you can do with it
Merge PDFs
Combine multiple PDFs into one document. Freely choose the order.
Extract pages
Pull out individual pages or page ranges from a PDF.
Rotate pages
Rotate individual or all pages by 90°, 180° or 270°.
Fill forms
Programmatically fill PDF form fields. Read and validate fields.
Watermarks
Add text or image watermarks to all or specific pages.
Password protection
Encrypt PDFs with a password. Set permissions for printing, copying and editing.
PDF/A conversion
Convert PDFs to PDF/A format for long-term archiving, ISO-compliant documents.
Text extraction
Full-text extraction from PDFs for search, indexing and further processing.
Metadata
Read and write PDF metadata: title, author, creation date, keywords.
Perfect for
Document workflows
Automatically merge cover letter + attachment. Title page + report + appendix in one PDF.
Archiving
Automatically convert business documents to PDF/A for long-term archiving. Compliance-ready and future-proof.
Self-service portals
Let users upload and process PDFs — merge, split, password-protect — without desktop software.
Related glossary terms
Standards and formats directly related to this feature — explained concisely.
GoBD
German federal tax administrative rules governing the proper management and retention of digital, tax-relevant records.
OAIS (ISO 14721)
International reference model for digital long-term archives — defines roles, information packages and functional entities an archive must fulfil to keep content readable and understandable for decades.
PDF/UA
Standard for accessible PDFs, codified as ISO 14289 — requires logical structure, Unicode mapping and alternative texts so that screen readers and assistive technologies can render them correctly.
PDF/A
The long-term archive format for PDF documents, standardised as ISO 19005. Guarantees identical rendering of a document for decades.