• Global community
    • Language:
      • Deutsch
      • English
      • Español
      • Français
      • Português
  • 日本語コミュニティ
    Dedicated community for Japanese speakers
  • 한국 커뮤니티
    Dedicated community for Korean speakers
Exit
0

Photoshop on IPad Pro is reducing file size

New Here ,
Jun 17, 2022 Jun 17, 2022

Copy link to clipboard

Copied

When I edit & save a file from Photoshop on my Ipad Pro, the file size is being reduced. I edited & saved the same photo in Photoshop on my desktop and it was not reduced. So, the Photoshop app for iPad is reducing my file size & dimensions at export/save. 

Is this just how it is with Photoshop on iPad or is there a way to make sure it doesn't reduce my file size? I was opening from and saving directly to an external SSD on my iPad.

TOPICS
iPadOS

Views

205

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Adobe
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

I wonder if you have got an answer to this elsewhere because I'm having the same issue?

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

What size reduction are you seeing - i.e. before and after?

Dave

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

Yes i do a lot of photoshopping. If l save a photo to edit on my iPad on the PSapp, when I finish the edit and send back to the person the quality is much less. If I do it on the PC the quality is maintained. I can't work out why or what i may be able to change in settings.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

Same question as before. What is the exact numerical file size reduction that you are seeing.

Dave

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

Oh DOH - sorry I clearly misunderstood 😕 I just checked one of the images - the edited image is actually more than twice the size of the unedited one. So I am assuming it's not a PS issue? Most often I am loading them to FB and I know FB compresses images however when I load from a PC the blurriness of the image is not present. Right now I am pretty confused. Larger file should mean better quality right? I am just not getting that.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

quote

Larger file should mean better quality right?

By @Graysyn

 

Only when all other things are equal.

 

With image files, there are many variables that can affect file size, such as file type, pixel dimensions, bit depth, whether compression was used, what type of compression, how compressible various layers/masks are, etc. It is easily possible for two images to have the same file size and very different visual quality.

 

In this case, I was specifically watching for whether the Background layer is converted to Layer 0 by Photoshop on iPad, because I thought I had seen that in the past. That simple act alone would at least double the file size because it’s no longer a flattened document. But, in my test just now, I found that there was no file size difference from opening a PSD file, saving it as a Photoshop Cloud Document, opening it in Photoshop on iPad, and without making any changes, using the Publish and Export feature to save that out of iPad Photoshop back down as a PSD file. My PSD test file was 40.7MB both before and after that cloud-and-back, no-edits test.

 

quote

I just checked one of the images - the edited image is actually more than twice the size of the unedited one.

By @Graysyn

 

In your example, does your editing change the layers in any way at all? That would include adding just one layer, or as I mentioned above, just converting the Background layer to a normal layer. Either of those is guaranteed to increase file size from a flattened (no layers) document, both just from adding the layer, and also (if used) from adding the “Maximum Compatibility” composite which is like another layer.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

Ok so when I open PS I get this message about the 'background layer being promoted' as per screenshot. (not sure if that is pertinent.) Some of the edits I do have multiple layers and I might save it as a jped and work on it again later and add further layers. I prefer to edit on PC but sometimes all I have is the iPad and so I use it - but the more I save it as a jpeg and then work on it later I notice a degradation of the image in the final save/upload. 


One other thing - when I got to save what is the best way to save on iPad - it gives me the option of  'standard', 'optimised' and 'progressive' - always at the max setting.

PS: Thank you for trying to help me with this!

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

quote

Ok so when I open PS I get this message about the 'background layer being promoted' as per screenshot. (not sure if that is pertinent.)

By @Graysyn

 

Oh yes, it’s pertinent!…that’s the message I remember seeing, but I couldn’t make it happen today. Fortunately you did. That is what I’m talking about, if the background layer becomes Layer 0, then the document is now un-flattened and capable of background transparency, but the tradeoff is the file size will at least double.

 

quote

One other thing - when I got to save what is the best way to save on iPad - it gives me the option of  'standard', 'optimised' and 'progressive' - always at the max setting.

By @Graysyn

 

If you see those options, now you are in serious “comparing apples to oranges” territory. Those options are specifically for JPEG format only. If a copy is being exported that way, it’s no longer a PSD file so the file sizes can no longer be compared directly. A JPEG is capable of much smaller file sizes, with the tradeoff being lower quality.

 

When I get the same file size before and after, it is because I am saving a PSD file to the cloud, and then after opening that in iPad Photoshop, I am specifically choosing PSD format on the way out, as shown below. Same format in and out. This is shown in the picture below.

 

If you chose JPEG because the next step is uploading to Facebook, that is appropriate, but then the JPEG copy would be expected to be a much smaller file than a PSD.

 

For JPEG, Standard is OK, the other two are less commonly used. The Quality setting is what really determines file size; higher quality = larger file. Also, it is nonlinear: The closer you get to Maximum, the more the file size bloats but the visual difference is hard to see, so many photographers who do bulk uploads do not export JPEG at Maximum because they want faster, smaller high quality bulk uploads. For general use, a good sweet spot is around 8.

 

Photoshop-iPad-share-to-PSD.jpg

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

That's great information and helps me a lot - thank you for taking the time!

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

quote

the more I save it as a jpeg and then work on it later I notice a degradation of the image in the final save/upload. 

 

when I got to save what is the best way to save on iPad

By @Graysyn

 

 

1. That's the nature of a JPEG — it is a lossy format and will degrade every time you save or export. The more you save it and work on it later, the more it degrades. The best practice is to keep your image as a PSDC and export no more than once to JPEG. You can't actually save the image as a JPEG on the iPad, btw. You can only Export to JPEG.

https://helpx.adobe.com/photoshop/using/create-open-save-ipad.html

janee_0-1716336383443.png

 

 

2. The best way to save your image in PS for iPad is to tap the Home button in the upper left to close it. Saving is automatic and it will have the PSDC extension.

 

Jane

 

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

Brilliant thank you! I did NOT know this stuff. I also assumed exporting was the same as saving. Much appreciated!

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

In general…

 

Saving means: Save back to the native file format, which supports all features (such as layers).

 

Exporting means: Create a copy in a non-native file format that may require flattening layers and features so that they are less editable. May also involve applying compression that is not used with the native file format.

 

So…

 

We prepare graphics for Facebook in a document saved in the PSD/PSDC/PSB format. This is like a “master” Photoshop file that preserves original quality and is fully editable, in case we need to change something later.

 

We upload a graphic for Facebook by exporting a copy from that native Photoshp file.

 

If the exported graphic needs editing, we don’t edit the exported JPEG copy, we go back to the full quality Photoshop original and then after editing, we export another JPEG copy to replace the previous one.

 

This is the same way it works in digital video, digital audio…for example, MP3 is like JPEG in that it is considered a “delivery only” format. Professional musicians would never be caught recording or editing in MP3 because it is too compressed to preserve all original quality. They all record and edit using full quality original format files, and only export an MP3 copy when it is time to deliver the final files to be uploaded for the public.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Explorer ,
May 21, 2024 May 21, 2024

Copy link to clipboard

Copied

LATEST

Thank you for taking the time to explain this to me. It's been extremely helpful and informative and certainly answers many of my questions!

 Really really appreciate it. 

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines