The PDF API for Problem Solvers

Secure, reliable, and well-documented PDF tools made for developers.

Use PDF Blocks in your API
Use PDF Blocks in your API

The building blocks

A growing collection of PDF actions you can integrate to your workflow in minutes.

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Merge documents

Combine multiple PDF documents into a single PDF document.

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Add password

Protect a PDF document with a password to prevent unauthorized access.

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Add text watermark

Add a text watermark to a PDF document. Choose one of many watermark templates.

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Add image watermark

Add an image watermark to a PDF document.

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Remove password

Remove the password from an encrypted PDF document.

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Add restrictions

Add restrictions to prevent copying, printing, and modifying a PDF document.

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Remove restrictions

Remove all restrictions from a PDF document.

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Extract pages

Extract one or more pages from a PDF document.

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Remove pages

Remove one or more pages from a PDF document.

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Rotate pages

Rotate one or more pages in a PDF document.

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Reverse pages

Reverse the order of the pages of a PDF document.

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Remove signatures

Remove the signatures from a PDF document.


Features

Security First

The transmission of your documents is protected with enterprise-grade encryption, and we never ever store your documents.

PDF Blocks Security →

Reliable

We offer a 99.99% service-level agreement backed by our highly-available architecture with six datacenters on two continents.

Historic uptime →

Data Residency

Choose to handle your documents exclusively in servers located in Europe or in the US to comply with data location requirements.

High Throughput

Built for heavy-duty use, our load-balanced infrastructure can handle thousands of documents per second.

Blazing Fast

Over 95% of all PDF documents we process are ready in less than one second. Most are done in less than 100 ms.

Direct Support

You get direct access to the engineers who built the product. We value your time, so we give precise and actionable answers.