Go Library

ConvertAPI Go Client

example workflow

Convert your files with our online file conversion API

ConvertAPI helps in converting various file formats. Creating PDF and Images from various sources like Word, Excel, Powerpoint, images, web pages or raw HTML codes. Merge, Encrypt, Split, Repair and Decrypt PDF files and many other file manipulations. You can integrate it into your application in just a few minutes and use it easily.

The ConvertAPI-Go library makes it easier to use the Convert API from your Go projects without having to build your own API calls. You can get your free API secret at https://www.convertapi.com/a


Execute this command in your GOPATH:

go get github.com/ConvertAPI/convertapi-go



You can get your secret at https://www.convertapi.com/a

config.Default.Secret = "your-api-secret"

File conversion

Convert DOCX file to PDF example. All supported formats and options can be found here.

pdfRes := convertapi.ConvDef("docx", "pdf", param.NewPath("file", "test.docx", nil))

// save to file

Other result operations:

// save all result files to folder

// get second file in result
files, err := res.Files()
secondFile := files[1]

// result implements Reader interface so it is possible to stream result
io.Copy(myReader, res)

// get conversion cost
cost, err := res.Cost()

Convert remote file

pptxRes := convertapi.ConvDef("pptx", "pdf", 
    param.NewString("file", "https://cdn.convertapi.com/cara/testfiles/presentation.pptx"),

Additional conversion parameters

ConvertAPI accepts extra conversion parameters depending on selected file formats. All conversion parameters and explanations can be found here.

jpgRes := convertapi.ConvDef("pdf", "jpg",
    param.NewResult("file", extractRes, nil),
    param.NewBool("scaleimage", true),
    param.NewBool("scaleproportions", true),
    param.NewInt("imageheight", 300),

User information

You can always check your remaining seconds programmatically by fetching user information.

user, err := convertapi.UserInfo(nil)
secondsLeft := user.SecondsLeft

More examples

Find more advanced examples in the examples folder.

Converting your first file, full example:

ConvertAPI is designed to make converting file super easy. The following snippet shows how easy it is to get started. Let's convert a WORD DOCX file to PDF:

package main

import (

func main() {
	config.Default.Secret = "your-api-secret"

	if file, errs := convertapi.ConvertPath("test.docx", "/tmp/result.pdf"); errs == nil {
		fmt.Println("PDF file saved to: ", file.Name())
	} else {

This is the bare-minimum to convert a file using the ConvertAPI client, but you can do a great deal more with the ConvertAPI Go library. Take special note that you should replace your-api-secret with the secret you obtained in item two of the pre-requisites.

Issues & Comments

Please leave all comments, bugs, requests, and issues on the Issues page. We'll respond to your request ASAP!


The ConvertAPI Go Library is licensed under the MIT license. Refer to the LICENSE file for more information.