Compressing PNG files

July 3, 2002 1:55 PM from

As I would like to compress my PNG files better, maybe someone here can explain or advise me how to do that. I don't own Photoshop, maybe there is something around that does the trick for me...Any idea's?

2,677 views 4 replies

Reply #1 July 3, 2002 2:09 PM from

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png as a graphic format, are well compressed, without looses and highly compressed!
You can use alpha channels, color profiles (for prepressing), include more information (keywords for searching in internet and others)
When you open a PNG in Photoshop, it opens as "Layer 1", without background, perfect to see the transparency. If you wish to save in Photoshop to PNG, first merge all layers (The background never), and select "Save as" CTRL+SHIFT+S; surelly the file as saved as a copy, caution, the file that remains open it's allways the original PSD file, close without saving (after saving as a PNG).
Is the best format in my apinion, for Internet and screen graphics

Reply #2 July 3, 2002 2:59 PM from

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Except just don't save them in Photoshop, because it's terrible at compressing them.

You can either use PSP or save them and then recompress using PNGCrush (http://pmt.sourceforge.net/pngcrush/)

Reply #3 July 6, 2002 11:08 AM from

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Thanks carlitus and greenreaper

I'll have a try with that crush proggie

Reply #4 July 6, 2002 12:10 PM from

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Powerdesk converts graphic formats...[one of its many talents] and does a pretty good job with PNG....just did a screen of this page...2.3meg BMP to 164k PNG using Powerdesk....

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