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How big of a file for no pixelation on an 11 x 17- for scanner ?

Posted by cheerpeople 5a (My Page) on
Tue, Sep 20, 05 at 9:27

I'm hoping someone out there can speak computer-eze in language I can understand.

I posted recently here about some scanner art of botanical content I'm doing. Refer to that post to see this art if it helps answer this question.

I'm able to send a file up to 10 M size thru yahoo to staples copy center and they can print a color 11 by 17 for less than $5.

Here's my question- when I take a 5-6M file (makes a great 8 x 10"- not sure if it HAS to be that big- but it looks great) and convert it to an image 11 x 17 - it now exceeds the 10 M limit of yahoo. I don't have a burner yet but it will built into our next computer purchase.- when ever that happens....

So how much M for a great 11 x 17"? I have found info that says a 16 x 20" needs 1600 x 1200 pixels- minimum ...but I don't know how to convert this unit into M or K.... and I don't have an option for 16 x 20" at staples anyway.

Thx for your help.


Follow-Up Postings:

RE: How big of a file for no pixelation on an 11 x 17- for scanne

What file format are you using to transmit the image? What file formats do Staples support?

A 1600x1200 true colour (24 bit) image requires about 6MB of memory. This can be stored in a lossless format such as TIFF in 4MB-5MB. I find that to be adequate for 8"x11" although a high quality print should really have a few more pixels. I can see how your 11x17 comes to over 10MB. 300dpi (dots per inch) is recommended for high quality printing, which would give a 50MB file!

Saving the same (6MB) file as a JPEG at the maximum 100 quality setting requires around 2MB, and at quality 90 only takes about 0.5MB. So saving as a JPEG should enable you to shrink your file sufficiently. Quality settings of 90-100 are suitable for high quality printing. Use the CMYK option if that is available.

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