pdfcompressor problem

When I try to use the presets with the file attached, I get fail.
Wondering if you can tell me why.

command:  pdfcompressor -preset ebook test1.pdf test2.pdf

result:  Fail
However, this command seems to work:

command:  pdfcompressor.exe -ci jpx -cidown -cidownres 300 -gi jpx -gidown -gidownres 300 -mi jbig2 -midown -midownres 300 test1.pdf test2.pdf

result:  test2.pdf created with 95% compression

BTW, this is the trial software.

Thanks in advance,
I have tried following command line just now, the "-preset ebook " option is work fine, I'm using Windows 7 32bit system, we system are you using?

D:\downloads>E:\pdfcompressor\pdfcompressor.exe -preset ebook  D:\temp\test1.pdf D:\temp\test1_1.pdf
You have 292 time to evaluate this product, you may purchase a full version from
D:\temp\test1.pdf ==> D:\temp\test1_1.pdf
Input File = "C:\Users\AppData\Local\Temp\pdfC9A8.tmp.pdf"
Output File = "D:\temp\test1_1.pdf"
Original PDF file size   =   6.54MB (6542.72KB, 6542719 Bytes)
Compressed PDF file size =   0.23MB (225.10KB, 225098 Bytes)
Compression Ratio        = 96.56%


Sorry should have put that.  I am running Windows XP SP3 and also tried it on a Windows Server 2003 Terminal Server, both gave the same message.  Just wondering how to get more information to figure out what is wrong.
I'm using Windows 7 system, I will test it on other systems shortly.

Also, "-preset ebook" option will subset the fonts in PDF file, maybe this is the reason of this problem.

In the meantime, I suggest you may use following command line to compress your PDF files, the following command line will compress the images in your PDF file, it is work fine for all of the PDF files,

pdfcompressor.exe -ci jpx -cidown -cidownres 300 -gi jpx -gidown -gidownres 300 -mi jbig2 -midown -midownres 300 test1.pdf test2.pdf


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