On Jul 12, 2010, at 3:22 PM, Ashley Sheridan wrote: > On Mon, 2010-07-12 at 15:17 -0400, Floyd Resler wrote: >> >> On Jul 12, 2010, at 2:52 PM, Gary wrote: >> >> > I'm sure it is possible, but I am unsure how to do this. I have created a >> > Sale coupon that I was going to put up on a site that I manage, for visitors >> > to print out and bring to the store. The coupon is currently a .png, however >> > I was planning on converting to a pdf. I would like to put on the coupon a >> > serial number that increases by 1 everytime the page is viewed. I dont >> > really care if someone refreshes the page and skews the numbers. >> > >> > Is this possible and could someone give me some help? >> > >> > Thanks >> > >> > Gary >> > >> >> Is there any particular reason you need it to be a PDF? If not and the GD library is installed in your PHP, I would suggest using the GD library to draw your serial number on the coupon. As for keeping track of the counter I would do it either in a database table or save the number to file. >> >> Take care, >> Floyd >> >> > > I can think of a good reason for making it as a PDF. A PDF is built for printing to scale exactly as you need, whereas a bitmap is very different. Traditionally, GD creates screen images, which are 72dpi, whereas print usually uses 300dpi bitmaps, and they generally don't scale well. > > Having said that, writing it in GD will be a fair bit easier! > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > > "Having said that, writing it in GD will be a fair bit easier!" Yep, that's why I was asking! :) Take care, Floyd
