Safe width in pixels for printing web pages?

As for a true “universal answer”, I can’t provide one. I can, however, provide a simple and definitive answer for some particulars…

670 PIXELS

At least this seems to be a safe answer for Microsoft products. I read many suggestions, including 675, but after testing this myself 670 is what I came up with up.

All the DPI, margin issues, hardware differences aside, this answer is based on the fact that if I use print preview in IE9 (with standard margins) – and SET THE PRINT SIZE TO 100% rather than the default of “shrink to fit”, everything fits on the page without getting cut off at this width.

If I send an HTML email to myself and receive it with Windows Live Mail 2011 (what Outlook Express became) and I print the page at 670 width – again everything fits. This holds true if I send it to an actual hard copy or a an MS XPS file (virtual printout).

Before I experimented, I was using a arbitrary width of 700. In all the scenarios mentioned above part of the page was getting cut off. When I reduced to 670, everything fit perfectly.

As for how I set the width – I just used a primitive “wrapper” html table and defined it’s width to be 670.

If you can dictate the end user’s software, such matters can be straight forward. If you cannot (as is usually the case of course) you can test for particulars like which browsers they are using, etc. and hardcode the solutions for the important ones. Between IE and FF, you will cover literally about 90% of web users. Put in some other code for “everyone else” which generally seems to work and call it a day…

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