If one is strapped for cash, Acrobat Standard also has the option, though it doesn't appear on the version comparison: http://www.adobe.com/products/acrobat/product-comparison.html
One feature that Pro version does have is a 30 day Free Trial period; it's on the above page.
Some of the options are described here http://blogs.adobe.com/acrolaw/2009/08/reducing-the-file-size-of-scanned-pdfs/
What is confusing is that PDF supports a great number of compression schemes for raster images, including JPEG and a method used byTIFF. There should be no large advantage in using a different format unless Creo is not using a suitable compression scheme. The following are all options:http://en.wikipedia.org/wiki/Portable_Document_Format#Raster_images
- ASCII85Decode a filter used to put the stream into 7-bit ASCII
- ASCIIHexDecode similar to ASCII85Decode but less compact
- FlateDecode a commonly used filter based on the zlib/deflate algorithm (a.k.a. gzip, but not zip) defined in RFC 1950 and RFC 1951; introduced in PDF 1.2; it can use one of two groups of predictor functions for more compact zlib/deflate compression: Predictor 2 from the TIFF 6.0 specification and predictors (filters) from the PNG specification (RFC 2083)
- LZWDecode a filter based on LZW Compression; it can use one of two groups of predictor functions for more compact LZW compression: Predictor 2 from the TIFF 6.0 specification and predictors (filters) from the PNG specification
- RunLengthDecode a simple compression method for streams with repetitive data using the run-length encoding algorithm and the image-specific filters
- DCTDecode a lossy filter based on the JPEG standard
- CCITTFaxDecode a losslessbi-level (black/white) filter based on the Group 3 or Group 4CCITT (ITU-T) fax compression standard defined in ITU-T T.4 and T.6
- JBIG2Decode a lossy or lossless bi-level (black/white) filter based on the JBIG2 standard, introduced in PDF 1.4
- JPXDecode a lossy or lossless filter based on the JPEG 2000 standard, introduced in PDF 1.5
The worst branding Adobe ever did was to use the name Acrobat in relation to the read-only version of software and confuse it with Acrobat Standard, but maybe they were pushing to sell Pro licenses, though I'll bet a lot of people skipped both and went NitroPDF or CutePDF or any of the many other PDF manipulation programs.