How to merge all PDF's in a directory with ghostscript

Question

How can I read the files contained in the directory d:\ with batchscript not one by one files like that. I have tried the following:

@echo off

"C:\Program Files\gs\gs9.25\bin\gswin32c.exe" -sDEVICE=pdfwrite -dCompatibilityLevel=1.3 -dPDFSETTINGS=/printer -dColorImageResolution=90 -dAutoRotatePages=/None -dBATCH -dNOPAUSE -sOutputFile=d:\d\koran.pdf *d:\a\01.pdf d:\a\02.pdf d:\a\03.pdf d:\a\04.pdf d:\a\05.pdf d:\a\06.pdf d:\a\07.pdf d:\a\08.pdf d:\a\09.pdf d:\a\10.pdf d:\a\11.pdf d:\a\12.pdf d:\a\13.pdf d:\a\14.pdf d:\a\15.pdf d:\a\16.pdf d:\a\17.pdf d:\a\18.pdf d:\a\19.pdf d:\a\20.pdf d:\a\21.pdf d:\a\22.pdf d:\a\23.pdf d:\a\24.pdf*

exit

Answer 1

Ghostscript doesn't 'merge' PDF files. It creates new PDF files by interpreting the contents of its input, this is not the same thing. You should read the documentation here

You haven't said what the problem is with the command you have tried, its going to be hard to help you if you don't do that.

The most likely problem is that you have put * characters at the start and end of the input filenames. Ghostscript itself doesn't match wildcards, it expects you to tell it each file you want to process individually. So in order to process a directory of files is to first get a list of all the files, and then tell Ghostscritp to use each of those files in turn.

You can use the Ghostscript @filename syntax (documented here)to tell Ghostscript to use the contents of a file as if it were the command line.

So all you need to do is come up with a shell script which will write the filenames from a folder into a file. That's not a Ghostscript question, and depends totally on the operating system you are using.

For Windows something like:

dir /B *.pdf >> files.txt
gswin32c -sDEVICE=pdfwrite -dBATCH -dNOPAUSE -sOutputFile=\temp\out.pdf @files.txt
del files.txt

might be sufficient for your needs.