Subject: Re: GIF -> PNG in help files
From: Pierre Abbat (phma@oltronics.net)
Date: Tue Jul 11 2000 - 11:59:50 CDT
On Tue, 11 Jul 2000, bob@abisource.com wrote:
>When we went from AbiWord 0.7.9 to 0.7.10, the size of the setup program increased from 1.2M to 3.2M on Windows, and similarly on Linux.
>
>My suggestion to reduce this size would be to change all GIF files in the help system to PNGs. Typically the PNGs will be much smaller, and this should save lots of download time for users.
>
>Does anyone have any objections if this starts happening in the tree?
The screenshots I put in the help tree I made either PNG or JPEG, usually
whichever was smaller. The JPEG parameters I used are -sample 1x1,1x1,1x1
-optimize -quality 88 except that some images I forgot to not subsample the
chrominance. This gives adequate JPEG quality for images containing text or
sharp edges.
As to browsers, PNG has been around for years and there is no reason for a
browser not to support it by now, unless it doesn't do images at all. I
recommend though that you not interlace the PNGs, as kfm does not handle this
well. I don't think we need alpha for this, which Netscape doesn't understand.
I add my voice to all underground rodents and say gopher it.
phma
This archive was generated by hypermail 2b25 : Tue Jul 11 2000 - 12:09:33 CDT