Foxit WebPDF Viewer Developer Guide

This guide covers the REST API and frontend API for integrating Foxit WebPDF Viewer into web applications to display, annotate, sign, and manage PDF documents.


Foxit WebPDF Viewer Developer Guide - cover page
Brand
Foxit
Document type
Other
Language
Chinese
Pages
46
File format
PDF
File size
2.1 MB
Published
12 October, 2026
Updated
12 October, 2026
MD5 checksum
9FC8E704704C4592FEF9E98571A03202

About this manual

The Foxit WebPDF Viewer is a cross-platform online PDF reading solution that allows developers to deploy and customize a viewer within web browsers. It enables end users to read PDFs on desktop and mobile devices without installing additional software locally.

This document provides technical details for developers, including definitions and usage instructions for the REST API (for backend integration) and the Frontend API (for customizing the user interface). It covers features such as document display, annotation tools, digital signatures, form handling, and security controls. This manual is written in Chinese.

What's inside

  • Overview
  • REST API
  • Frontend API
  • Digital Signature
  • Form Handling
  • Security Features
  • FAQ

Frequently asked questions

What is the file size limit for PDFs in WebPDF Viewer?

Foxit WebPDF Viewer supports PDF files smaller than 200M.

Why does the PDF display look damaged in my browser?

If you are using an old version of Internet Explorer (IE 6 or IE 7), the PDF display may be corrupted because WebPDF Viewer does not support these versions.

Can I disable rectangular text selection?

Yes, starting from version 2.2, you can disable rectangular text selection by setting the RectangularTextSelection parameter to false in config.js.

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