----- Original Message ----- From: James Knott Date: Sunday, March 7, 2010 8:17 am Subject: Re: [users] Compression of documents To: [email protected]
> Dave and Anna Whitehouse wrote: <snip> >> In 'ms Word' - my usual day-to-day software - we can >> create a text doc ., add images, and then compress that whole > > > ODF documents, such as those created by OpenOffice are already > "zipped" so you can't compress them further. As an experiment save > the same document in both .DOC and .ODT formats I'm lounging on a Sunday morning so as an experiment I took a .docx with images that someone had sent me and saved it in OpenOffice.org to .odt. Then I ran the .odt through zip, gzip, bzip2 and lzma. .docx = 2858501 bytes .odt = 2851953 bytes I'm surprised there was so little difference. Perhaps .docx is quite a bit better than .doc for file size. I remember seeing large differences in file size between .odt and .doc files. Compressing the .odt (and decompressing after successful compressions); Zip responded "zip error: Nothing to do! (file.odt)" gzip resulted in a file of 2847583 bytes bzip2 gave 2833811 bytes lzma gave 2860784 bytes So you can compress an .odt with images in it, but the difference is not great (with the tools I have). Cheers, IanS --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
