Can't change image size when exporting in Save to Web

Community Beginner ,
Jul 14, 2021 Jul 14, 2021

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Hi, I am creating an instagram carousel in photoshop - i.e. a very long canvas. I created a new blank canvas with the custom dimensions of 1350 for height and 9720 for width (it will equal 9 slides that are 1080). I added multiple images and then split the canvas into 1080 sections. When I go to export Save for web legacy, it shows that the image size is 8192 W and 1138 H. That's odd. When I try to change it to 9720 and 1350, it gives me this error. So I went with it to see what the images would look like but that has reduced the quality of my image slides. I go back in and double check that my canvas size is still what I put it as and sure enough it still is 9720 + 1350. So shouldn't the image size in export match that? If so how can I change it?

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How to, Import and export

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Community Beginner ,
Jul 14, 2021 Jul 14, 2021

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Oh and to clarify - in the first screen shot the error shows that I was exporting it as a GIF. I just did it quickly to reproduce the error for the screenshot. But I was trying it as a JPEG and that's what I want is jpg format - multiple (9) images to come out from this. 

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Adobe Community Professional ,
Jul 14, 2021 Jul 14, 2021

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8192 pixels H or W is the limit for Legacy SFW, so it will reduce your canvas to that amount as seen in the bottom right of the SFW dialog. Try File > Export > Export As > and choose jpeg in the dialog menu. It will allow 9720 px.

 

(I have to double check things, but that way you have good information).

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Community Beginner ,
Jul 14, 2021 Jul 14, 2021

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Oh That's interesting! So I tried that and yes it now shows 9720 + 1350 and the quality looks so much better - however, now it saves it as one long image instead of exporting 9 individual photos from the canvas. I don't know why "save for web" process knows to automatically split the images where I have spliced them, but the Export > Export As > jpeg option doesn't retain the splices. So now is there a workaround for that?

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Adobe Community Professional ,
Jul 14, 2021 Jul 14, 2021

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I've never tried to split an image before either in SFW or Export  This video gave a clear idea if what you are doing and unfortunately SFW is recommended because it generates

images from the slices. So this is where I'm stuck.

https://youtu.be/ZYIY34RHI48

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Adobe Community Professional ,
Jul 14, 2021 Jul 14, 2021

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So now we know SFW reduces your panorama to 8192, but exports the slices. Export > Save as Jpeg can't export slices.

 

So if no one answers this problem, start a new topic explaining the situation.

 

Gene

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Community Beginner ,
Jul 14, 2021 Jul 14, 2021

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Okay thank you I'll wait and see if someone else knows the answer! Thanks for your help.

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Adobe Community Professional ,
Jul 17, 2021 Jul 17, 2021

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You could use View>New Guide Layout to divide the image into 9 sections, use the Rectangular Marquee Tool to Layer>New>layer Via Copy each section and then select all 9 layers right click and use Export As which should save thiose 9 layers to separate trimmed files.

 

ex1.pngex2.pngex3.png

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Adobe Community Professional ,
Jul 18, 2021 Jul 18, 2021

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Why create another topic?

 

https://community.adobe.com/t5/photoshop/save-for-web-legacy-limitation-workaround-for-instagram-car...

 

I have added a script in the other topic to automate the process of splitting the image into columns and rows.

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