Check out the full list of features that Foxit PDF SDK provide to help you build a customized PDF Viewer.
Take a look at who uses our technology.
Open, render and view PDF documents across all platforms and devices, and preserve your content long-term. Our years of industry expertise means our technology is fast, accurate and robust.
Explore MoreUse ink signatures to let customers sign documents in their digital devices. Sign PDF in web apps easily without needing to print a file to sign again!
Explore MoreFast full-text search for any PDF document, language, or encoding type. The SQLite-based full-text search delivers near-instant results, even for repositories on any digital device.
Explore MoreCreate, edit and fill PDF (AcroForms and XFA) forms progammatically. Give end users the ability to fill out digital forms that connect flawlessly to your systems through the import and export of FDF (Form Data Format) files.
Explore MoreOur PDF SDK provides full support for displaying and annotating PDF in web applications with an extensive range of functions for creating, editing or importing/exporting annotations.
Explore MoreTake advantage of full encryption and decryption, password encryption, certificates — or, bring-your-own security handler. Support for Standard PDF security handler (40 and 128 bit RC4), 128 bit AES encryption, and 256-bit AES encryption.
Create and edit document attachments, or associate files together. Associating files lets you associate content in other formats with objects of a PDF file and identify the relationship between the PDF content and the objects.
For large files, allow the first PDF pages to be loaded asynchronously, without having to load the whole document, which would normally take a very long time to load.
Rearrange page content when the page size changes. This is useful for applications that have to prepare for the same layout to display on multiple devices. Create, render, release, and access properties of reflow pages.
Generate barcode bitmaps from a given string. Support for 1D barcode: Code39, Code128, EAN8, UPCA, EAN13, ITF; 2D barcode: PDF417, QR.
Render all PDF layers of a document, traverse the layer tree, and set the visible state of every PDF layer to show or hide its contents.
Premium extensions

XFA Forms are XML-based forms wrapped inside a PDF. Securely capture, present, move, process, output, update and print information associated with static and dynamic XFA forms. Simplify your data sharing, transportation and availability with XFA.
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Keep your PDF documents secure by connecting your application and files to Microsoft's Rights Management Services platform natively. Foxit PDF SDK also integrates with your IRM and DRM solution.
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Convert scanned documents to searchable text PDFs with our highly accurate enterprise optical character recognition (OCR) software. Designed for scanning, and archiving, our robust functionality outputs 13 different file formats including PDF & PDF/A.
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Programmatically search and sensor sensitive information in a document for legal or security purposes to keep your customer and employee information safe. Click here to see how you can achieve full GDPR-compliance.
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Leverage our conversion and verification technology to turn regular PDFs into PDF/A compliant documents. If you are already working with PDF/A in your processes, proactively verify third-party PDFs you receive are PDF/A compliant.
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Try our SDK for Web in your browser. No download or login required.
Licensing tailored to you
Our sales engineers are PDF experts and coders by trade. They'll answer any technical questions, help you build a proof of concept, and create a license that suits your needs.
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