How to store image in 300 dpi using php

[Eric Ilavia]

Can anyone tell me how to store an image in 300 dpi using php and gd which gd function is used.

[Atli]

Hi Eric. Welcome to TSDN!

The GD functions will work on most JPEG, PNG and GIF images. They also have support for some BMP formats, tho I have never been able to find much use for them.

There is no way to give exactly the functions you will need, as I do not know what you are trying to do, but all the GD functions are listed in the above link.

If that does not work for you, you could try a Google search for ImageMagick. I have never used it but it is supposedly superior to GD in many ways.

[ronnil]

Hi Eric

If your picture is 300dpi, I'd suppose saving the picture will still produce a 300 dpi picture unless you alter the size of the picture.

I would advise you not to use a php-method to toy around with images used for printing (if that is your objective). In this case i think Java would be better (don't know how much better tho)

I found this topic discussing the same subject, you might wanna check it out link