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How to merge multiple couples of PDF files into single ones together?

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If I have multiple PDF files like 1001_a.pdf, 1001_b.pdf, 1002_a.pdf, 1002_b.pdf, 1003_a.pdf, 1003_b.pdf, etc., how can I only merge the _a with the _b together simultaneously?


You can write a bat file within A-PDF Merger (free download here) to carry out your requirement.

Create a .bat file with the below content:

@echo off

setlocal EnableDelayedExpansion

set pmcmd=d:\pdfpmcmd\pmcmd.exe

for %%i in (*_a.pdf) do (
set filea=%%i
set "fileb=!filea:_a=_b!"
set "fileo=!filea:_a=_o!"

echo %pmcmd% "!fileo!" "!filea!" "!fileb!"
%pmcmd% "!fileo!" "!filea!" "!fileb!"

Make sure the “pmcmd.exe” is in the right place you set in “set pmcmd=…”

This web tutorial will give you an overview of the procedure how easy to use this product!

Or view video tutorial here:



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