> Thank you for your reply. > But the above code increases size only , but not DPI resolutions( > vertical nad horizontal).I need a higher vertical and horisontal > resolutions. > Any idea how to do that?
The DPI is nothing an image contains by itself - it depends on the resolution of the rendering device! So - without knowing what DPI the output device produces, and which resolution the image was acquired in, you can't do anything. If you know these two quantities, you can scale the image by the appropriate amount. Bearophile suggested that there might be a DPI-information stored in the image itself. If so, it is hopefully the DPI the image was e.g. scanned in. But if you for example afterwards scaled it by half, this information must be altered accordingly, to reflect the changes. Diez -- http://mail.python.org/mailman/listinfo/python-list
