Inspiring

Resampling options can't be selected

Forum|Forum|1 year ago
November 2, 2024
4 replies
430 views

I'm trying to do something very simple - double or triple the size of a graphic in PNG format for publication. The first time I tried it everything worked fine. I could select the resampling method I wanted for enlarging. I had 6 more figures to do and Photoshop would only allow automatic resampling for 5 of the remaining images. When I got to the last figure which takes up a whole page it allowed me to select "Preserve details".

All 7 original figures were made the same way but PS is not treating them the same. The two it worked on were larger. It should be using all of them.

If it wasn't for Gigapixel I would be in a jam now. But I need to know what is PS having a problem with. BTW I use the latest Windows version of PS.

Windows

D Fosse

Community Expert

Photoshop doesn't "treat" it as indexed color - it was already created as indexed color by Powerpoint. Photoshop just opens whatever it receives, it doesn't change anything.

This isn't a Photoshop issue, it's a Powerpoint issue.

K

KarlKrueger54Author

Inspiring

Changing to RGB mode does fix the problem. So that discloses the issue was how PS handles the PNG given to it. I made my PNGs in Powerpoint - simply text with some text being hihglighted in color. PS automatically treats that as "index" and not RGB. But two PHGs worked fine without changing the mode because they were both recognized as RGB. One had no color in it and the other had a second panel included with its own colors. For the 5 PNGs that needed to be changed to RGB I only had colored boxes highlighting certain text.

Thank you for solving this but its something you may want to look at in seeing how PS is treating these PNGs created by Powerpoint.

D Fosse

Community Expert

So this is what you're not getting?

EDIT: Apparently you have indexed color in some files, not RGB 8 bits per channel:

D Fosse

Community Expert

You need to tell us exactly what you're doing.

K

KarlKrueger54Author

Inspiring

I crop the PNG first. Then I select Image > Image size. That is where you
either enlarge or shrink the picture by resampling. You should get 7
resampling options but when this doesn't work only the default
Automatic can be selected - all others are grayed out.

--
Karl Krueger
Gaithersburg, MD
knaturfoto.com
instagram.com/knaturfoto

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