Join documents together using Go

Go SDK to combine several documents and export the result to almost any office format

Use Go library to merge Word, PDF, Web documents via REST API. Easily combine two or more documents into a single file using Go.

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Combine Word, PDF, Web documents using Go REST API

Easily merge documents together in various formats in Go code. This Go library is designed to combine Word, PDF, Web documents into a single file using the REST API, i.e. by passing HTTPS calls over the Internet.

This is a professional Cloud-native document-merging solution that provides Go programmers with both great development flexibility and powerful features. Joining files together is often used when it is necessary to create a set of documents of the same structure, each of which contains unique data. By merging documents, you can automate your digital workflows and offload some routine parts of the process to fast and efficient document-processing Go software.

Merge multiple files into one in Go

You may need to combine documents together in many cases. For example, you may want to combine multiple files together before printing or archiving.

Merging documents together can be part of a whole integrated technology for creating documents from disparate data sources. Such tasks involve the use of a full-featured file format manipulation Go library that will process sets of files and merge them together in the shortest possible time, creating a compact and accurate output.

To merge documents in Go, you need at least two source files. For a quick start, check out the Go code example below.

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import (

config, _ := models.NewConfiguration("config.json")
wordsApi, ctx, _ := api.CreateWordsApi(config)

document, _ := os.Open("Input1.docx")
// Load a document to append from the Cloud storage.
mergeDocument := models.DocumentEntry{
    FileReference: models.CreateRemoteFileReference("Input2.docx"),
    ImportFormatMode: ToStringPointer("KeepSourceFormatting"),

documentEntries := []models.DocumentEntry{ mergeDocument, }
documentList := models.DocumentEntryList{ DocumentEntries: documentEntries, }

appendDocumentOnlineOptions := map[string]interface{}{}
appendDocumentOnline := &models.AppendDocumentOnlineRequest{
    Document: document,
    DocumentList: documentList,
    Optionals: appendDocumentOnlineOptions,
_, _, _ = wordsApi.AppendDocumentOnline(ctx, appendDocumentOnline)
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How to merge files JPG, Word, PDF, JPEG Go REST API

  1. Install Go SDK and add the reference (import the library) to your Go project.
  2. Open the source file in Go using REST API.
  3. Load a document to append from the Cloud storage.
  4. Call the AppendDocumentOnline() method, passing the output filename with the required extension.
  5. Get the the combined result as a single file.

Go library to merge files

Run go get -v to install Aspose.Words Cloud SDK for Go. You can get a lot of useful information about other installation methods from the "How to use SDK" section.

Clone Aspose.Words Cloud SDK for Go source code from GitHub and use it in your project. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.

System Requirements

Refer to the Repository Documentation to see the details.


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