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Postscript - how to insert an image?

Has anyone ever done any postscript programming? I've got a nice postscript template that I modify for on-the-fly creation of .ps files (to send to the printer, and convert to pdf). I'm having a hard time inserting an image. I glanced through the 900 page doc on the postscript format but it's a bit... verbose. Hard to get to the meat of how to actually do it rather than the theory behind it.

Has anyone inserted an image into a postscript file?

On my shelf is a book I've used so much it's beginning to fall apart. It's PostScript Language Reference Manual from Adobe Systems Incorporated. Some people call it the Red Book.

It discusses inserting images. I haven't actually done that, but I've read it and understand it. It's not too heavy on theory (whatever "theory" means in PostScript); it's pretty straightforward.

You can get this book used on Amazon.

Hope this helps.

Ok, you got me interested.

I went to the Red Book and fleshed out their partial example. Run program gs against this and see what you get.

Code:

%!PS-Adobe



% location on page, in points



/lowerleftx    72 def

/lowerlefty    144 def



% size on page, in points



/destwidth    132 def

/destheight    66 def



% size of original image, in pixels



/sourcewidth    32 def

/sourceheight  16 def



% greyscale; two hex digits per pixel, with 00 being black and FF white



/bitspersample  8 def



% string to hold each row



/picstr sourcewidth string def



gsave



lowerleftx lowerlefty translate

destwidth destheight scale



sourcewidth sourceheight bitspersample    % dimensions of source image

[ sourcewidth

  0

  0

  sourceheight neg

  0

  sourceheight

]                                          % coordinate transformation matrix

{ currentfile picstr readhexstring pop }  % getting the data

image



0000000000000000000000000000000000000000000000000000000000000000

00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF0000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00000000000000000000000000000000000000FFFFFFFFFFFFFFFFFFFF00

00FF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

00FF00000000000000000000000000000000000000000000000000000000FF00

00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00

0000000000000000000000000000000000000000000000000000000000000000



grestore



showpage

Hope this helps.

Quote:

Originally Posted by wjevans_7d1@yahoo.co

Ok, you got me interested.

I went to the Red Book and fleshed out their partial example. Run program gs against this and see what you get.....

interesting.... that does help... looks like you just convert each pixel to hex & splat it out in the file.

an excellent starting point. Thanks!