Learn how to stop Photoshop scratch disk errors by resizing templates, lowering Smart Object DPI, and using the Replace Content method for faster Bulk Mockup performance.
Hi Kerry, so thank you for suggesting that I need to create a video that will optimize the size however, I’m recording a quick video for you and explain you a couple of settings that could help you you know avoid that scratch disk full error and That could be like 3000 into 4000 is quite a big file
So if you are not required, I believe if you are uploading it for product stores like physical products like printer and demand products, think the size around 1000 pixels into 1500 pixels is quite good. So you could try that. The other one would be change the DPI of the… Let me open some mockup template and I’ll show you what I mean.
I have any mockup templates here?
So consider this file. Consider this is your mockup template. So in this case, to optimize it, the first step would be to reduce the size. As you can see, I’ve already reduced it to 1,000 to 1,500. This is a decent enough for web purposes. And then the other one would be, if I open the smart object layer, you could clearly see that this is 300 DPI.
This is the major chunk of the processing that bulk mockup takes up. mean Photoshop generally takes up and gives you the error scratch disk full. So if possible If you could go ahead and you know Just change the resolution for this one Remember this 1845 so I’ll write it 72 1845
This will considerably improve your performance of bulk mockup. Now make sure that when you open it again it’s 72 ppi. So this is the other thing that we could do. And then um one more aspect is using this resize method called replace content. So replace content.
I’ll try to explain you how bulk mockup works and then this could make sense to you. So when bulk mockup opens a smart object layer, it tries to find out the smart object layer, which is add direct design over here. So if it finds an add direct design, if we have selected any of these options, fit to canvas, fill to canvas, accept replace content, bulk mockup would open the smart object layer.
and it would place the design on it now here. I it would open a new tab and then place the design, save it, go back and then export it. Like it’s two to three steps. Okay? However, when you select replace content, what it actually does, what it actually do is, it does not open the smart object layer, it just right clicks, replaces content and selects any of the design, whatever design it may be. uh
So, it is actually trimming out 2 to 3 extra steps and this is faster and it does not require much processing power from Photoshop. The only catch in this method is using replace content is that your smart object layer in this case this design file and the all other design file should be consistent in size, location. What I mean by size and location? You could clearly see the design is placed at this juncture.
So all the other design should be also placed appropriately. Also the other designs that we will be replacing, it should have the same resolution, mean same width, same height and same resolution 72. So if you have all your design file consistent in size, then you could avoid and use replace content which will improve your speed drastically. So these are my recommendations at the moment and I will definitely create a video as you have asked and publish it on YouTube channel.
as well as the website. Thank you so much.
Users commonly encounter the “scratch disk full” error when working with large PSD mockup templates in Photoshop, especially when Bulk Mockup repeatedly opens, edits, and exports Smart Objects.
Heavy file sizes, high-resolution Smart Objects, and inefficient resize methods slow down processing and exhaust Photoshop’s temporary storage. Below is a clear, actionable guide to prevent this issue.
Files sized 3000×4000 px are unnecessarily large for most POD or eCommerce uses.
Resize your entire PSD to around 1000×1500 px, which is more than adequate for online product previews.
This alone drastically reduces Photoshop’s memory usage.
Bulk Mockup normally opens the Smart Object, inserts the design, saves, and returns, creating 2–3 processing cycles per file.
The Replace Content method skips all those steps by replacing the Smart Object directly without opening it.
To use Replace Content, every design must:
If all design files are consistent, Replace Content becomes the fastest and most efficient method.
After resizing the template and Smart Objects and switching to Replace Content, run Bulk Mockup again. Processing will be significantly faster, and scratch disk errors should disappear.
For fast fixing the ‘scratch disk full’ error in Adobe Photoshop, watch this YouTube video.
Optimize PSD size, lower Smart Object DPI, and use Replace Content to dramatically reduce Photoshop’s scratch-disk usage and speed up Bulk Mockup processing.
This error occurs because Photoshop temporarily stores Smart Object operations on the scratch disk. Large PSDs, high DPI Smart Objects, or repeated open-and-save cycles overload the disk, leading to performance failures and halted mockup generation.
Yes. Shrinking your PSD from large dimensions (like 3000×4000 px) to approximately 1000×1500 px significantly reduces memory load. Bulk Mockup processes templates faster, Photoshop uses far less temporary storage, and the risk of scratch disk failure drops sharply.
Bulk Mockup repeatedly opens the Smart Object while generating mockups. A 300 DPI Smart Object consumes far more RAM and scratch space. Reducing it to 72 DPI keeps visual quality acceptable for web previews while reducing processing weight dramatically.
Use Replace Content when all your design files are identical in size, position, and resolution. This method bypasses Smart Object editing steps entirely, offering faster processing and substantially lower scratch-disk usage, ideal for high-volume mockup creation.
If design sizes or placements differ, Replace Content may misalign or distort them. In such cases, use Fit to Canvas or Fill to Canvas instead—but expect more processing, as Bulk Mockup must open each Smart Object individually during generation.
