Documentation

Explore the docs

Select your platform

Windows

Developer Guides

API Reference

Web

Developer Guides

API Reference

Collaboration API Reference

PDF Conversion SDK

Developer Guides

API Reference

Mac

Developer Guides

API Reference

Linux

Developer Guides

API Reference

Android

Developer Guides

API Reference

iOS

Developer Guides

API Reference

ActiveX

Articles & Project samples

Latest release

Foxit 10.1

Foxit PDF SDK for Desktop 10.1.0 supports PDF/E and PDF/X standards in preflight checks, enhances the conversion workflows and OCR capabilities with the support of multi-threaded/multi-core processing and additional options, and improves the performance in document optimization and form file import processes. It also adds new APIs in modules like search, image processing, and text processing to deliver a streamlined workflow.

Foxit Conversion SDK 2.1.0 brings enhanced features to PDF2Office and Office2PDF, providing users with a more versatile and efficient document conversion experience. For PDF2Office, users can now convert the restricted PDF files and benefit from additional options to remove trailing spaces from the output, specify Excel workbook settings, and control whether to include images or insert page breaks during conversion. Office2PDF introduces the support for outline conversion in Word2PDF, and offers workbook conversion options in Excel2PDF.

Read the release page Read the release page
Solutions

Plug-Ins & Open Source

Cordova

Build native mobile (iOS, Android) apps with HTML, CSS & JS. Target multiple platforms with one code base on our mobile PDF SDK.

Learn More Learn More
Kotlin

Develop Android applications using MobilePDF SDK in Kotlin. Designed to work using Java, MobilePDF SDK can easily be integrated into your development process when working with Kotlin.

Learn More Learn More
React Native

Write with or create components using JavaScript code to develop Android and iOS applications using React Native.

Learn More Learn More
Xamarin

Build and deploy native Android, iOS and Windows apps, using existing skills, teams, and code in C# with MobilePDF SDK.

Learn More Learn More

WebPDF.JS

Develop a full-fledged PDF Viewer for browser environments, all with Javascript. Migrate from PDF.js and experience native-like performance.

Read more Read more
Explore further

Recent articles & project samples

Appearance streams for PDF form fields

Updated 16 May 2022
Foxit Quick PDF Library
A form field must have an appearance stream associated with it in the PDF in order for the form field to be visible when the PDF is viewed or printed. Appearance streams control the appearance of widget annotations and allow them ...
Keep reading Keep reading

Create PDF form fields programmatically

Updated 16 May 2022
Foxit Quick PDF Library
Creating PDF forms programmatically is easy with Foxit Quick PDF Library. In the sample code below we show you how to create text, checkbox and radio button form fields. A list of all form field functions available in our PDF SDK ...
Keep reading Keep reading

Use NormalizePage to resolve issues with adding text to pages in PDF files

Updated 16 May 2022
Foxit Quick PDF Library
If you're experiencing issues with text not appearing correctly or in the right location on the page after using a function such as DrawText then calling the NormalizePage function may resolve this issue for you. When you create a...
Keep reading Keep reading

Switching between the 32-bit and 64-bit DLL versions of Foxit Quick PDF Library (Visual Basic)

Updated 16 May 2022
Foxit Quick PDF Library
The DLL edition of Foxit Quick PDF Library includes support for 32-bit and 64-bit applications. If you're absolutely sure that you will only want to use the 32-bit version or the 64-bit version then you can just hard code in ...
Keep reading Keep reading

Switching between the 32-bit and 64-bit DLL versions of Foxit Quick PDF Library (Visual C#)

Updated 16 May 2022
Foxit Quick PDF Library
The DLL edition of Foxit Quick PDF Library includes support for 32-bit and 64-bit applications. If you're absolutely sure that you will only want to use the 32-bit version or the 64-bit version then you can just hard code in the v...
Keep reading Keep reading

Large PDF file size after adding PNG image using AddImageFromStream

Updated 16 May 2022
Foxit Quick PDF Library
The PDF specification supports JPEG data directly, so you can just put the JPEG directly into the PDF. But it doesn't support PNG data directly so the image data must be read out of the PNG image and only the necessary parts added...
Keep reading Keep reading

Setup Visual Basic and Visual Studio with the DLL edition of Foxit Quick PDF Library

Updated 16 May 2022
Foxit Quick PDF Library
Here are some instructions on how to use the DLL edition of Foxit Quick PDF Library with Visual Basic .NET within Visual Studio. This answer applies to Visual Studio 2003 through to Visual Studio 2013. To make life easier, the DLL...
Keep reading Keep reading

Setup Visual Basic and Visual Studio with the ActiveX edition of Foxit Quick PDF Library

Updated 16 May 2022
Foxit Quick PDF Library
In order to use the ActiveX edition of Foxit Quick PDF Library you first need to register it on your machine. To register it simply type the following into the command line (Start > Run > CMD): regsvr32.exe "C:\Program ...
Keep reading Keep reading

Programmatically flatten form fields in a PDF using Foxit Quick PDF Library

Updated 16 May 2022
Foxit Quick PDF Library
Foxit Quick PDF Library enables you to programmatically flatten PDF form fields. Flattening a PDF form means that the content (text and images) of the form fields are converted to regular text and image objects in the PDF and...
Keep reading Keep reading