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The Most Comprehensive PDF API on iOS
Start with just what you need and seamlessly add more features, such as night mode, reflow, MS Office, redaction, optimization, editing, etc.
Complete Source Code Customization
Use simple and ready-to-use annotation tools & widgets that come with the complete source code to match your look & feel or build a unique product. No limits!
Top Performance & Proven Rendering
iOS-optimized silky smooth viewing of complex PDFs. Avoid costly surprises with the most compliant rendering engine built from the ground up and perfected at PDFTron over the last 20 years
Better Viewing Experience
Avoid slow & bandwidth-draining downloads when viewing documents in the cloud. PDFTron can instantly view pages on-demand without downloading the entire document.
Overcome Apple PDFKit Limitations
Apple PDFKit API suffers from rendering and compatibility issues. Overcome these problems with a simple adapter library or take advantage of many unique PDFTron features.
Try Xodo — PDFTron iOS SDK sample app
Complete source code for the UI, annotation tools, and all UI widgets is included as part of the CompleteReader sample project.
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Hundreds of features
Support current and future use cases with the most complete PDF & Office SDK on the market.
All Features
30+ file formats
Support for 30+ file formats, including PDF, PDF/A, HTML, SVG, PNG, and Microsoft Office.
All File Formats
Documentation & Samples
Everything you need to quickly build a prototype, and for a great development experience.
DocumentationPowered by the PDFTron SDK
Easy to Integrate
Code samples, familiar package managers, and a Docker image make it easy to get up and running.
Consistent and Predictable
Our core document engine has been perfected by 20 years of knowledge, innovation, and real-world testing.
Fully Customizable
An open source UI gives you complete freedom to match your look & feel, and optimize the user experience.
Truly Cross-Platform
A single API with consistent function calls across platforms means a shorter learning curve and easier maintenance.
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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Unlimited usage. No email address required.