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PDF SDK

Bring accurate, reliable and fast PDF functionality to any application or workflow. Matured for 20 years in the world's most demanding environments, PDFTron’s fully supported PDF SDK is built from the ground up and is not dependent on external third-party open-source software.

Documentation

Accurate, Reliable & Fast

Have confidence that all documents will output quickly and flawlessly, even at 1GB+ or 10,000+ pages. Display PDFs quickly by streaming individual pages or tiles without a full file download.

Client-side or Server-based

Let users view, annotate, fill forms, and edit PDFs -- all entirely client-side, in a native app or any modern browser, including offline. Embed into any self-hosted Linux- or Windows-based workflow.

Fully Customizable UI/UX

Increase adoption and productivity by simplifying the open source UI. Match your desired look and feel. Hide unnecessary features -- or add custom annotations that trigger workflows.

Functionality

Annotation & Collaboration

Markup PDF, MS Office, and other formats with highlights, stamps & notes. Support real-time collaboration, XFDF, and all PDF annotation types.

PDF Viewer

View most challenging PDFs with speed and reliability. Reflow content. Embed slick & ready controls, or take full control with our source code.

Conversion

High-fidelity direct document conversion from 30+ file formats. Preserve quality, vector graphics, text, hyperlinks, colors, fonts, and metadata.

PDF Form Filling

Support interactive form filling, FDF, and embedded JavaScript. Or, programmatically create, pre-fill, sign, extract, and flatten PDF forms.

Creation

Create compliant & optimized PDFs dynamically from text, images, other formats (like MS Office, OOXML, HTML, XAML, XPS), and templates.

Edit & Manipulate

Programmatically or interactively insert pages and content, append, split, remove, crop, reorder, rotate, export, edit, and much more.

Parsing & Extraction

Extract readable text, vector data, tables, fonts, and color profiles for advanced search or to repurpose existing PDFs.

Digital Signatures

Sign PDFs using standard (and custom) Digital Signatures. Extract information for validation. Support multiple-signatures and XFDF.

Searching

Use advanced regex to search across pages, annotations, and PDF libraries. Find the exact position of text on pages.

Redaction

Safely remove sensitive content within PDFs without covering or obscuring. Redact regions interactively or programmatically.

Measuring Tools

Define a document’s scale and then measure distance, area, and perimeter. Snap to control points for increased precision.

PDF/A Library

Convert 20+ file formats into ISO-compliant PDF/A files that pass VeraPDF validation. Or generate ZUGFeRD electronic invoices.

Advanced functions

Document Analysis

A document understanding platform for intelligent, automated data extraction from virtually any document.

Compare Files

Visually compare the differences between 2 files (images, paths, text, forms, shadings, and other types of content).

Optimize

Compress and shrink PDFs by removing redundant information & compressing data. Flatten files for fast web and mobile viewing.

OCR

Make scans, images, or documents searchable by converting to PDF or PDF/A. Extract all machine-printed text inside documents.

Secure

Add, remove, or change security settings on PDF documents. AES 256 support. Use custom security handlers to build your DRM.

PDF to Word

Quickly convert PDF to Word in your application, enabling users to edit PDF content, tables, text, or images as Word files.

RIP, Rasterize, and Print

Support overprint, ICC color management. View PDF separations. Enjoy support for large-format & high-quality vector printing.

PDF Layers (OCGs)

Toggle PDF Layers (Optional Content Groups or OCGs) in PDF viewer. Or programmatically create, edit, extract, or render OCGs via APIs.

Command Line Tools & Utilities

Process documents in batches or individually. For high-throughput server environments, or as building blocks for applications.

Our primary requirement was, here is a big chunk of demanding PDF files. Can you open them? When we pushed most of these 190 PDFs through PDFTron, we couldn’t find one that didn’t open. And from what ...

Tony Cornwall

Product and Development Manager, Construction Computer Software (CCS)

PDFTron demonstrated superior speed and functionality out of the box. In contrast, the competition took a lot of shortcuts, and it was obvious in the user experience.

Alistair Michener

Founder and CEO, Drawboard

Read Success Story

One of the biggest things we hear from our customers is how our new solution is really easy to use. With the previous software as complex as it was, customer training was much, much more involved. I w...

Wayne Wyngaard

Solutions Manager, OEC Graphics

Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

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Linux

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Salesforce

Unlimited usage. No email address required.

PDFTron PDF SDK

Web

Frameworks

Integrations