Merge PDF API

Merge multiple PDF files into single document

Merge PDF features

The Merge PDF API allows users to combine multiple PDF files into a single PDF document.

Some key features of Merge PDF API include retaining page numbering, eliminating duplicate fonts for improved performance, and generating a table of contents for the merged documents. Additionally, it offers properties like page size to set a consistent page size across the merged document and page orientation to choose between portrait and landscape orientations, ensuring that the final output meets specific formatting requirements.

This API is useful for organizing content and reducing the number of separate files by merging them into one.

API Endpoint

ConvertAPI offers a cloud-based solution, which makes Merge PDF conversion effortless with just a single REST-API call:

        HTTP POST
    
https://v2.convertapi.com/convert/pdf/to/merge

Postman OpenAPI cURL CLI

Authenticate your API call

Converting pdf to merge via REST-API is now easier than ever. Sign up for a free account to obtain your authentication secret, append it as a query string parameter to the conversion URL, and voilà! You can find advanced authentication techniques in our docs.

        QUERY AUTHENTICATION
    
https://v2.convertapi.com/convert/pdf/to/merge?auth=secret_or_token

Merge PDF using REST-API in no time!

Once you have your authentication in place, you can convert your files using application/json, multipart/form-data and application/octet-stream content types. A simple HTTP POST request using JSON would look like this:

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

Conversion request using cURL

You can easily convert pdf to merge with a simple cURL request. Our documentation provides more advanced cURL request techniques.

File conversion using CLI

ConvertAPI CLI allows you to convert files using our command-line file conversion utility tool. Check out CLI documentation for a detailed explanation and usage examples.

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

Try the conversion online - no coding required!

You can try out advanced conversion parameters and test the conversion result online using our interactive demo tool. This tool will produce the same conversion output as if you were using the library from your solution, and it will auto-generate the code snippet for you!

Try for FREE!

Conversion parameters

RemoveDuplicateFonts Bool

Do not include the same fonts from source PDFs while merging.

BookmarksToc Collection

Adds a top-level bookmark for each file, using the filename or PDF title from metadata.

Values: disabled filename title

PageSize Collection

The property scales each page to fit a given page size.

Values: default a2 a3 a4 a5 a6 letter legal

PageOrientation Collection

Set page orientation.

Values: default portrait landscape

OpenPage Integer

Set the page number at which the PDF document should open.