<div dir="ltr">What about using imagemagick to resize the new image?<br><br> magick new_sketch.jpg -resize 2550x3300! fixed_sketch.png <br><br>Henry</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, 3 Apr 2026 at 18:53, Bill Gee <<a href="mailto:bgee@campercaver.net">bgee@campercaver.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello everyone -<br>
<br>
I am not sure how this should be handled, or if it even CAN be handled ...<br>
<br>
A few weeks ago we went to a section of a cave where the original sketch <br>
has some problems. Rather than resketch the entire section, we took the <br>
original sketch and made corrections directly on it.<br>
<br>
Now I want to update the Therion map. Six months ago I used the <br>
original sketch as the background of a .th2 file, then drew as much as I <br>
could figure out. Since the update is on the same piece of paper, I <br>
figured I could just replace the original drawing background with a <br>
scanned image of the updated sketch. It did not work.<br>
<br>
The new scanned background comes in about 1/5 as big as it needs to be. <br>
The original elements I drew do not match up, so I cannot draw the new <br>
stuff on it.<br>
<br>
I think the reason is that the original background and the new <br>
background were scanned at different resolutions. I did not scan them. <br>
The old background image is 2550x3300 pixels and the new is 908x1200 pixels.<br>
<br>
What do you suggest? Is there a way to stretch the new background so it <br>
fits under the existing drawing?<br>
<br>
It might be easiest to ask for a rescan. The new scan might still not <br>
line up. Is there a way to shift the background? I think there is. I <br>
have managed to do it a few times by accident. No idea what keys I hit <br>
when that happens. I have to close the .th2 without saving, then open <br>
and start again.<br>
<br>
-- <br>
===============<br>
Bill Gee<br>
<br>
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</blockquote></div>