Hi 4wd,

Thank you so much for your updated code. ;) This is working great. ;)

Not sure whether you mean folder1 should be completely empty at the end or not since files that aren't PDF will be remaining - ie. delete everything in folder1 after running the Check-PDF function.

In which case, what happens to the non-PDF files that were in the folders?
Delete or move with PDF?

Keeping (like you have already done) what is left inside folder1 is fine. ;)


I did some tests and here is a zip files with examples :
The main bug (see "2-itextsharp.pdfa") is when in folder1 a folder is named "bla.pdf" it causes a "stackoverflow" bug in powershell (it closes Powershell and restarts it when I run it in edit mode).
The other thing is strange filenames (maybe some asian text?). Edit 1: it is because on my computer the folder path is too long on some of those one ! Otherwise it is renaming them fine ! ;)

Others are detecting invalid pdf files (see "1-malformed_pdf"- from what I understand there are at least 2 problems : 1)Invalid pdf file and 2)The image file format has not been recognized  ). From experience it is a complex problem and I think it is better if I do it by hand with PDFinfoGUI (*) and remove them with an excel macro as I can see very fast if I need to download again some important files. So please forget about those. ;)
(*) neither yes or no in column encrypted and other columns - Then I copy the list - except the important one
https://filebin.net/t5ai1inqcfw7vp67/20191121tests.zip?t=6qfxn4l3

Also, many thanks for the detailed explanations of long names. I appreciated.;) Your truncate filename current code is just already very fine for me. ;) Thanks. ;)

Currently doesn't check for the existence of a file with the same name before renaming.

If I understand well it is because "folder1\venise-.pdf" would have the same name of a file already available in folder3 "folder3\venise.pdf". Renaming the new one (for instance with a counter "venise1.pdf" would be fine).

I have added a small function in order to delete empty folders in folder3

Function Delete-SmallPDF2 {
  param (
    [bool]$delSmall
  )
  if ($delSmall) {
    Get-ChildItem "$($folder3)\*" -Include *.pdf -Recurse | ? {$_.length -lt 2048} | % {Remove-Item $_.fullname -Force}
  }
  Get-ChildItem "$($folder3)" -recurse | Where {$_.PSIsContainer -and `
    @(Get-ChildItem -Lit $_.Fullname -r | Where {!$_.PSIsContainer}).Length -eq 0} | Remove-Item -recurse
}

Edit 2:
I forgot I had this error message :
So I have copied "itextsharp.dll" in C:\Windows\System32\WindowsPowerShell\v1.0\itextsharp.dll
It may explain why if I try to use 4wd's code in another hard drive (example : L:\) even if I copied the 7z.dll, 7z.exe and itextsharp.dll files and adapt the code for new locations, the script doesn't show errors but it fails to run properly the Check-PDF part. It moves some image based pdf in folder2 instead of folder3 for some files ? So I stay in C:\ ;)


Thanks in advance ;)
Jity2

Hi 4wd,

Many thanks for your detailed explanations. ;) Your last code update is working great for 'unzipping' zip and rar files. ;)  :Thmbsup:

(A simple note for those following : I have downloaded this 7zip version (https://www.7-zip.org/a/7z1900-x64.exe) that I have extracted it in "C:\Program Files\7-Zip". Then I have copied "7z.exe" and "7z.dll" in my working directory.)

Still doesn't do extracted archives ... still thinking about it  :P

I thought that if I run it twice it would find them (example : folder1\6\6\example.zip)  during the next run (which would be fine) but no.

Thanks in advance ;)
Jity2