Why does pdfa.exe pause for a long time before working?

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Aaron Gravesdale

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Feb 26, 2014, 2:41:11 PM2/26/14
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Q:

I'm running the following command:

pdfa.exe -c -z -o output input\*.pdf

The command pauses for a long time before processing documents.  For ~100,000 documents, I'm seeing a delay of about a half hour.  What's going on in this delay, and how can I avoid it?

A:

The delay is coming from the processing of the wildcard parameter, which happens in the VC runtime.  The runtime expands the wildcard and selection-sorts the resulting list of filenames. 

The delay can be avoided by omitting the wildcard, so that PDFNet enumerates the list of files itself:

pdfa.exe -c -z -o output input



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