---
title: "PDF Merger"
slug: "pdf-merger"
description: "Information about the PDF Merger engine."
updated: 2026-01-30T12:35:43Z
published: 2026-01-30T12:35:43Z
canonical: "kb.lasernetgroup.com/pdf-merger"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.lasernetgroup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PDF Merger

**Applies to:** Lasernet Core 11

This module can combine multiple PDF documents into a single job, as well as merge a list of additional PDF documents with the combined job.

The JobInfo named JobData will contain the data for all the combined jobs. It will be attached to the JobInfos that were created in the first job. JobInfos for all other Jobs expect that the first job will be deleted.

You can add a criteria to each additional document as well as documents whose criteria are true, to be merged with the job. If no additional documents are added, it will only combine jobs from the combiner.

![The Setup tab for a PDF Merger engine.](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Documentation/pdf-merger-image-oythivla.png)

## Settings

The PDF Merger has the following settings:

![The Setup tab for the PDF Merger.](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Documentation/pdf-merger-image-66k6pbbv.png)

### Active

Turn item on/off.

### Attachment JobInfo

Name of the JobInfo that contains PDF data to insert at the specified location (or locations). PDF document data is read from the first job.

### Description

User-defined description field.

### Action

Select where to insert an attachment in JobData.

- **First:** Before first job
- **Middle:** Between jobs
- **Last:** After the last job

## Non-valid/Existing PDF Data

If invalid or existing PDF data is added in JobInfos listed to be merged with JobData at First, Middle and Last page, the engine will behave as follows:

![The Setup tab for the PDF Merger engine with JobInfos listed and checkboxes selected.](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Documentation/pdf-merger-image-65btl10o.png)

- If the listed JobInfo exists in the job but contains invalid PDF data, the engine will fail the job.
- If the listed JobInfo exists in the job but contains null data, the engine will not fail the job.
- If the listed JobInfo does not exist in the job, the engine will not fail the job

## Combining

Select the **Combining** tab and activate **Enable Job combining** to merge multiple PDF documents into a single PDF document. For more information about combiner settings, see [Combining Jobs](/v1/docs/combining-jobs).