tiff2pdf looses information?

[Matt Beals]

A PDF can most certainly use image compression. Most often it uses medium
quality JPEG. Depending on how the conversion occurs it can also down sample
the image resolution to 150 dpi. There are several different compression
methods that could be used: None, LZW, 4bit ZIP, 8bit ZIP, JPEG, JPEG2000,
JBIG, CCITTG4, CCITTG3. All depends on how the software is configured.

Matt Beals
Consultant
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(206) 618-2537 - cell
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mailto:matt at mattbeals.com

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> From: Paul Smith <phhs80 at gmail.com>
> Reply-To: "For users of Fedora Core releases <fedora-list at redhat.com>"
> <fedora-list at redhat.com>
> Date: Sat, 12 Aug 2006 20:43:42 +0100
> To: For users of Fedora Core releases <fedora-list at redhat.com>
> Subject: tiff2pdf looses information?
> 
> Dear All
> 
> When I convert a large tiff file to pdf format, the resulting pdf file
> has an incredibly smaller size comparatively to the original tiff
> file. So, my question is: does the conversion process loose
> information? Or is there some compressing while converting from tiff
> to pdf? Can pdf files have compressed information?
> 
> Thanks in advance,
> 
> Paul
> 
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