Drag-and-drop script to quickly resize any image
Tue, Sep 28 2004 at 10:13AM PDT • Contributed by: robg
Tue, Sep 28 2004 at 10:13AM PDT • Contributed by: robg
My friend (and primary author of the two Unix chapters in the new Woof Book) Kirk McElhearn was looking for a simple way to resize images for his Kirkville website. Although there are probably 1,500 apps out there that resize images, none seemed to do exactly what he wanted: drag an image onto an app, have it scale it to a predefined size, then save the file with a new name. He didn't want to have to launch Photoshop or Graphic Converter, nor specify the parameters every time; he just wanted a fast and easy resizer to his chosen dimensions (120 pixels wide by the required scale length).
Being the AppleScript expert that I am (ha!), I quickly chose the "phone a real expert" option and sent an email to Sal Soghoian, who was kind enough to respond with some very elegant resizing code. I then took a shot at adding the requisite file handling bits, but again my abilities with AppleScript turned Sal's work into a muddled mess. So I again deferred to an expert. This time, it was Doug Adams, of Doug's AppleScripts for iTunes fame (300+ free iTunes AppleScripts). Between the two of them, the end result was a very effective AppleScript. Read the rest of the hint for the details...
Open Script Editor, and create the following new script:
You can, of course, pick another width other than 120 pixels (just change the noted line in the source). With a bit more work, you could have this script prompt for the width, or set the scale based on height targets, etc. Thanks to Sal and Doug for this very useful script; I'll actually use it a fair bit when I just have a simple resize need!
Being the AppleScript expert that I am (ha!), I quickly chose the "phone a real expert" option and sent an email to Sal Soghoian, who was kind enough to respond with some very elegant resizing code. I then took a shot at adding the requisite file handling bits, but again my abilities with AppleScript turned Sal's work into a muddled mess. So I again deferred to an expert. This time, it was Doug Adams, of Doug's AppleScripts for iTunes fame (300+ free iTunes AppleScripts). Between the two of them, the end result was a very effective AppleScript. Read the rest of the hint for the details...
Open Script Editor, and create the following new script:
-- save in Script Editor as Application
-- drag files to its icon in Finder
on open some_items
repeat with this_item in some_items
try
rescale_and_save(this_item)
end try
end repeat
end open
to rescale_and_save(this_item)
tell application "Image Events"
launch
set the target_width to 120
-- open the image file
set this_image to open this_item
set typ to this_image's file type
copy dimensions of this_image to {current_width, current_height}
if current_width is greater than current_height then
scale this_image to size target_width
else
-- figure out new height
-- y2 = (y1 * x2) / x1
set the new_height to (current_height * target_width) / current_width
scale this_image to size new_height
end if
tell application "Finder" to set new_item to ¬
(container of this_item as string) & "scaled." & (name of this_item)
save this_image in new_item as typ
end tell
end rescale_and_save
You can, of course, pick another width other than 120 pixels (just change the noted line in the source). With a bit more work, you could have this script prompt for the width, or set the scale based on height targets, etc. Thanks to Sal and Doug for this very useful script; I'll actually use it a fair bit when I just have a simple resize need!
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