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

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


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.


I could not make it work using "files.txt" but I am using this and everything works just fine.
gswin64c -sDEVICE=pdfwrite -dBATCH -dNOPAUSE -sOutputFile="out.pdf" (Get-ChildItem -Path .\*.pdf)


You can execute like below:
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf *.pdf
Reference:
https://gist.github.com/moaazsidat/b94185e9cfdba9e3cfb5bc90407e6397

Related

Create accessible PDF Files with Ghostscript

im trying to create a barrier-free pdf-document with Ghostscript (Version 9.54)
In the end i need a pdf file which contains tags in it.
I was trying to use the following command, but it didn't work.
gsprint.exe -ghostscript "C:\Program Files (x86)\GS\bin\gswin32c.exe" -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dQUIET -dPDFA=2 -dCompatibilityLevel=1.4 -sPDFACompatibilityPolicy=2 -dNOOUTERSAVE -dProcessColorModel=/DeviceRGB -sOutputFile=""C:\temp\ghost\pdfua.pdf"" ""C:\temp\test23.pdf""
Ghostscript creates a new pdf in the specified folder (c:\temp\ghost\pdfua.pdf) but there are no tags in it.
Have you guys some ideas?
thx

Redirect ghostscript Output

I use the following command (in a Windows cmd) to decrypt pdf files stored under the directory C:\Users\David\Desktop\BS1999\ and write the output into the same folder using ghostscript:
FOR %x IN (C:\Users\David\Desktop\BS1999\*.pdf) DO gswin64c -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=%x_converted.pdf -c .setpdfwrite -f %x
So in short I have
For %x IN (*.pdf) DO my-ghostscript-function %x
What modifications do I have to make to redirect the output ("name-of-file"_converted.pdf) to another file path (for example C:\Users\David\Desktop\test)?
Thanks in advance!
Best, David

best solution for sending fax in asterisk

I want to write a script for sending a fax with Asterisk,
but many faxes have an error when sending.
I use Spandsp for Asterisk and I use gs for converting PDF to TIFF.
I think it may be a problem of converting PDF to TIFF.
I very try to convert's command for this, such as:
gs -q -sDEVICE=tiffg3 -dNOPAUSE -dBATCH -sOutputFile=Sample.pdf.tif -f Sample.pdf
/usr/bin/acroread -toPostScript -size a4 <filename>
/usr/bin/gs -q -sDEVICE=tiffg32d -sPAPERSIZE=a4 -r204x196 -sOutputFile=<outputfile> -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -dNOPAUSE -dBATCH -f <inputfile.ps>
and I tested anyways into link for converting, but it doesn't work fine, and most of sending fax have issue.
Also, I have another problem in answer detection beep in my Asterisk when the trunk with Newrock gateway(analog), this is cause some fax doesn't send correctly!

Check hylafax code. It have working script
I use code like this:
gs -sDEVICE=tiffg3 -sPAPERSIZE=$pagesize -r204x196 -dNOPAUSE -dNOPAGEPROMPT -dBATCH -sOutputFile=dest.tif \
-c save pop -f input.pdf -c quit
But actualy it doesn't metter. More important how setup your routes/codecs.
Other problem is for sure offtopic here. You have read more books or hire expert.

Merged PDFs Blank

Trying to merge all pdfs in a directory using GhostScript 9.06 64bit in a .bat file
The following, makes merged.pdf, but it is 1 page and blank
call gswin64c -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf *.pdf
If I actually specify which PDFs to merge it works fine. What gives?
call gswin64c -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf 1.pdf 2.pdf 3.pdf

You can't specify wildcards on the Ghostscript command line, simple as that.
Since GS didn't find a file called '*.pdf' it didn't execute any marking operations, in this case you get a blank file.

Ghostscript cannot do wildcard expansions by itself.
If you call gs ... *.pdf from inside a shell which can do wildcard expansion, it will work nevertheless.
There is a difference with the site you linked to and the code you used above:
Your code is DOS batch and uses call gswin64c .... But as said, Ghostscript cannnot expand wildcards itself.
The code in the linked web page is Unix shell, which does the wildcard expansion before Ghostscript gets to see its own commandline. When Ghostscript gets to see it, the wildcard expansion has happened already.
You have to find a solution for your batch file where you first store your (expanded) *.pdf file names in a variable %mypdfs% and then do call gswin64c ... %mypdfs%.

you can't specify the wildcard from the command line, but you can make gswin32c run a command file.
as the 'command file' just requires switches to be separated by any amount of white space (space, tab, line break), and there is no limit on the size of the file, we can make a file that does what you need
echo -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf > files.gsx
dir *.pdf /b >> files.gsx
once this file files.gsx has been created, then you can make your file using
gswin32c #files.gsx
and all the files will be merged

I did the following to solve this:
1.) dir /B *.pdf > do.bat
2.) opened do.bat with notepad to replace \r\n with spaces
3.) inserted: c:\Programs\gs\gs9.07\bin\gswin64 -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=merged.pdf at the beginning
and then executed do.bat
Voilà

GhostScript removes images from some processed PDF files

I'm using this command with gs 9.01:
gs -q -dAutoRotatePages=/None -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dPDFSETTINGS=/printer -sOutputFile=out.pdf in.pdf in.pdfmarks
and on some processed files (out.pdf) I noticed that images are missing, although present in input file (in.pdf).
Why is this and how can I assure that images are retained after processing with gs?

1) Update to the current version, 9.04.
2) If you still experience problems, report a bug at http://bugs.ghostscript.com. You will need to attach a sample PDF file