Resizing PDFs

Geek stuff ...

I recently scanned some multi-sheet technical drawings to pdf format and then used Adobe Acrobat 7.0 to combine the individual pdfs into one enormous pdf file.

The result would take forever to render in Acrobat/Acrobat Reader. I tried the Size Reduction tool in Acrobat but this resulted in no file size reduction (presumably as the file was already in the most recent pdf format).

Yesterday I found somewhat of a solution ...

In Acrobat save the pdf file as a JPEG. This results in a jpg file of each page of the pdf. Close the original pdf. In Acrobat click on Create PDF, select Multiple Files, select the jpgs, give it a filename and then it will create a new pdf approximately half the size of the original with no apparent loss of resolution.