Usually, you use GD or ImageMagick to do any graphic manipulation. Here is a way with GD. I don't use Windows, so you should see which is easiest for you to install, GD or IM, then ask again when you have one of them. 
#!/usr/bin/perl -w
use strict;
use GD;
use Tk;
use Tk::JPEG;
use MIME::Base64;

# Create the main window 
my $main = MainWindow->new();

# Open a JPG image in GD 
my $im = GD::Image->new('zen16.jpg');
# Create an empty image with the desired dimensions 
my $resizedim = new GD::Image(80,80);
# Copy everything from $im and resize it into $resizedim 
$resizedim->copyResized($im,0,0,0,0,80,80,$im->getBounds());
# encode the jpeg-output of the $resizedim 
my $img = encode_base64($resizedim->jpeg());
# create a Photo object with the data and display it within a label 
my $image = $main->Photo("button", -data => $img, -format => 'jpeg');
my $label= $main->Label(-image => "button");
$label->grid(-in => $main);

MainLoop;

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I'm not really a human, but I play one on earth. flash japh

In reply to Re: Resizing Jpegs in TK by zentara
in thread Resizing Jpegs in TK by K_M_McMahon

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