Achieving highest resolution output

dfepstein at comcast.net dfepstein at comcast.net
Fri Jun 20 08:54:28 EDT 2014



I hope someone can help me understand printing resolution. 

If I use LiveCode to generate a PDF that will be printed at 300 dpi, how do I achieve the best output? For vectors, I assume that it makes no difference at what scale I compose the picture. (Is that true?) But suppose I want to print a bit map 1 inch wide. I would tell LiveCode to "print into rect 0,72,0,72" (for example) to indicate that it should be 1 inch square. Will this work better if the original bit map is 300 pixels wide (to match the intended 300 dpi resolution)? Or if it's a multiple of 72, like 288, pixels wide? 

Further suppose that I want some 9 point text on my 1 inch square. For the case where I'm printing 288 pixels of width into a rectangle that is 72 wide, it seems clear I can compose with 36 point text. But if I'm printing 300 pixels into that 72 wide rectangle, will 36 be slightly too small? Should I use 37 point text? 

Is composing at 300 pixels better for the bit map quality but 288 pixels better for getting the right the text size? 

Thanks for any guidance. 

David Epstein 


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