Developer Guide for Foxit PDF Conversion SDK for Go (3.0)

Introduction to Foxit PDF Conversion SDK

Foxit PDF Conversion SDK is a flexible high-performance library for conversion between PDF files and MS Office files while maintaining the layout and format of your original documents. It offers advanced conversion capabilities as well as the same quality and user experience you can expect from Foxit. The engines for creating MS Office files or PDF files are developed independently by Foxit and no 3rd party office engine is required to be pre-installed on your machine. Foxit PDF Conversion SDK can be used as a standalone library or as an add-on with Foxit PDF SDK.

Why Choose Foxit PDF Conversion SDK

Foxit is a leading software provider of solutions for reading, editing, creating, organizing, and securing PDF documents. Foxit PDF SDK libraries have been used in many of today’s leading apps, and are proven, robust, and battle-tested to provide the quality, performance, and features that the industry’s largest apps demand. Foxit PDF Conversion SDK is a new SDK product independently developed by Foxit. Customers choose Foxit PDF Conversion SDK for the following reasons:

Easy to integrate

Developers can seamlessly integrate Foxit PDF Conversion SDK into their own applications.

Lightweight footprint

Does not exhaust system resource and deploys quickly.

Independently–developed engine

The core technology of the Conversion SDK is developed independently by Foxit.

Premium World-side Support

Foxit offers premium support for its developer products because when you are developing mission critical products you need the best support. Foxit has one of the PDF industry’s largest team of support engineers. Updates are released on a regular basis to improve user experience by adding new features and enhancements.

Foxit PDF Conversion SDK for Go API

In this guide, we focus on the introduction of Foxit PDF Conversion SDK for Go API on Linux platform. Foxit PDF Conversion SDK for Go API ships with simple-to-use APIs that can help Go developers do conversion between PDFs and MS Office files (only support docx, pptx and xlsx format files).

Evaluation

Foxit PDF Conversion SDK allows users to download trial a version to evaluate the SDK. The trial version has no difference from a standard version except for the 14-day limitation trial period. After the evaluation period expires, customers should contact Foxit sales team and purchase licenses to continue using Foxit PDF Conversion SDK.

License

Developers should purchase licenses to use Foxit PDF Conversion SDK in their solutions. Licenses grant users permissions to release their applications based on PDF SDK libraries. However, users are prohibited to distribute any documents, sample codes, or source codes in the SDK released package to any third party without the permission from Foxit Software Incorporated.

About this guide

This guide is intended for developers who need to integrate Foxit PDF Conversion SDK for Go API into their own applications. It aims at introducing the installation package, and the usage of SDK.

Getting Started

It’s very easy to setup Foxit PDF Conversion SDK and see it in action! This guide will provide you with a brief introduction about our SDK package. The following sections introduce the contents of system requirements, the installation package as well as how to run a demo, and how to initialize Foxit PDF Conversion SDK.

System Requirements

Platform	System Requirement	Note
Linux	x86/x64 (32-bit and 64-bit OS) The minimum supported version of GCC compiler is gcc5.4. The minimum supported version of GLIBC is GLIBC_2.17.	The sample for Linux x86/x64 has been tested on Ubuntu14.0 32/64 bit.

Note:

Foxit PDF Conversion SDK supports machine learning-based recognition functionality which can identify borderless tables in PDF documents. By default, it is disabled, if you want to enable it, please make sure the network is connected first.

What is in the package

Download the package for Go (Linux) and extract it to a new directory. The release package contains the following folders:

doc: API references, developer guide

examples: sample demo

lib: libraries and license files

res: font-related configuration files

Note:

In the “res/metrics_data” folder, it contains the metrics data files which are used to simulate the Office format document typesetting process during PDF to Office conversion. The metrics data will be included in the dynamic library, no manual configuration is required.

In the “res/office2pdf” folder, it contains the resource files which are used to simulate the Office format document typesetting process during Office to PDF conversion.

How to run a demo

Foxit PDF Conversion SDK provides a pdf2office and an office2pdf demo in the “examples” folder. To run the demos, you can follow the steps below:

Install Go.

Ensure Go 1.18 or later is installed on your Linux system. If not, download and install it from https://golang.google.cn/dl/.

Set the library path to the environment variable.

Assume the downloaded package is extracted to “/home/user/Desktop/foxitpdfconversionsdk_3_0_linux_go”.

For Linux x64, open a terminal, and set the library path using the following command:

export LD_LIBRARY_PATH=/home/user/Desktop/foxitpdfconversionsdk_3_0_linux_go/lib/x64:$LD_LIBRARY_PATH

Run the demos.

In the terminal, navigate to “foxitpdfconversionsdk_3_0_linux_go/examples/simple_demo”.

Type “./RunDemo.sh pdf2office” to run the pdf2office demo.

Type “./RunDemo.sh office2pdf” to run the office2pdf demo.

The output files (Word, Excel, PowerPoint, or PDF) will be generated in a folder named by the project name under “examples/simple_demo/output_files/” folder.

How to initialize Foxit PDF Conversion SDK

It is necessary for apps to initialize Foxit PDF Conversion SDK using a license before calling any APIs. The trial license files can be found in the root directory.

import (
    . "foxit.com/fpdfconversionsdk"
)
const(
sn = " "
key = " "
)
func main(){
    code := LibraryInitialize(sn, key)
    if code == E_ErrSuccess{
        function()
    }
    LibraryRelease()
}

Note: The value of “sn” can be got from “conversionsdk_sn.txt” (the string after “SN=”) and the value of “key” can be got from “conversionsdk_key.txt” (the string after “Sign=”).

Support

Foxit Support

In order to provide you with a more personalized support for a resolution, please log in to your Foxit account and submit a ticket so that we can collect details about your issue. We will work to get your problem solved as quickly as we can once your ticket is routed to our support team.

You can also check out our Support Center, choose Foxit PDF SDK which also has a lot of helpful articles that may help with solving your issue.

Phone Support:

Phone: 1-866-MYFOXIT or 1-866-693-6948