Programming PHP

Adding an image to a PDF document is relatively simple. The first step is to call the
appropriate open function for the type of image you are using. These functions all
take the form pdf_open_format(). For instance:
$image = pdf_open_jpeg(pdf, filename);
Once you have opened the image, use pdf_place_image( ) to indicate where in your
document the image should be located. While you have an image open, you can
place it multiple times throughout your document; your generated file will contain
only one copy of the actual image data. When you are done placing your image, call
the pdf_close_image( ) function:
pdf_place_image(pdf, image, x, y, scale);
pdf_close_image(pdf, image);
The scale parameter indicates the proportional scaling factor to be used when placing
the image in the document.
You can get the dimensions of an image via pdf_get_value( ) calls on the imagewidth
and imageheight keywords.
Example 10-7 places an image in several places on a page.
Example 10-7. Placing and scaling images