Programming PHP

Example 10-7. Placing and scaling images (continued)
echo $buf;
pdf_delete($p);
?>
Figure 10-7 shows the output of Example 10-7.
Figure 10-7. Placed and scaled images
The scaled versions of the PHP logo in Example 10-7 kept their original proportions.
To do nonproportional scaling of an image, you must temporarily scale the coordinate
system via a call to pdf_scale( ):
pdf_scale(pdf, xscale, yscale);
All subsequent coordinates will be multiplied by the xscale and yscale values.
Example 10-8 shows nonproportional scaling in action. Note that we had to compensate
for the coordinate system scaling in the pdf_place_image( ) call to have the
image show up in the right place.
Example 10-8. Nonproportional scaling