Ok i try it one more time a little shorter:

1 InDesign Document with 30 pages, on each page i placede only 1 linked pdf file. So i got a Folder with 30 single pdf files, each file only placed once on each of the 30 indesign pages. Each pdf file has a different name.

CUT

Now, i got 30 new single pdf files, all new 30 files got new names, all different than the old 30 files which were linked in the indesign document.

I only want indesign to re-link all the new 30 pdf files with the old ones automatically, no matter that the new ones got different names. Because they got different names than the old ones, i have to manually re-link every single pdf on every single side at the indesign document and tell indesign which old file to replace with which new file.

InDesign PAGE 1 -> PDF-File linked (Name: example1234.pdf) – re-link manually with new file (Name: example4321.pdf). If you do this for about 300 pages (sometimes our documents are that big) that is a big effort and takes much time.

I need a script that replaces all the new pdf files with the old linked pdf files in that indesign document.

The size and file format of the new files are still identical, only the file names are changing. The important one would be that the script automatically replaces all 30 old files with the new 30 files, in which order the new files are replaced doesn’t matter. Only make sure all old files getting replaced with the new files automatically and i don’t have to do this like 300 times manually for bis documents.

Can you now understand it? Otherwise i need to do a screen capture or something like this, but i hope you now understand my problem.