PDFMerger is a simple tool that allows you to merge multiple PDFs into a single PDF or batches of PDFs.

Usage
1. Input Directory
Click the 'Input Directory' button to browse to the directory that contains the PDFs that you wish to be merged.

2. Output File
Click the 'Output File' button to browse to the directory that you wish to saved the merged PDF to.

3. Merge All
Click the 'Merge All' radio button to merge all of the PDFs in the input directory into the single file selected from the 'Output File' button.

4. Merge in Batches
Click the 'Merge in Batches' radio button to merge all of the PDFs in the input directory into batches defined by the number in the 'Batch Size' text field.
For example, if the input directory contains 500 PDFs and the 'Merge in Batches' radio button is selected and the 'Batch Size' text field is set to 100, then 5 PDFs will be generated each containing 100 of the PDFs from the input directory.

Requirements:
* .NET Framework 4.0

The license of this software is Freeware, you can free download and free use this pdf software.