One question I have about this is; Will it burn what it can…or just ignore the whole image and not attempt to burn it, hence dropping the error screen.
Ok, now we have common ground. Thanks for clearing that up.
Apply mask is another tool you can use to clip away unwanted parts of an image.
Pro-tip, once you have adjusted your image, save it to an art library so it will be a point n click operation to import a burn ready version.
In case I was not clear, YOU were right all along. My apologies.
You need to UNCHECK it. Ignore means it won’t engrave out of bounds items.
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Lol…okay.
So it is worded backwards 
Thank you SO MUCH …I have seriously been struggling with this for over a year.
Where’s your tip jar?
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No, you just understand it backwards, LOL.
Be careful running with this unchecked normally as it will allow the machine to attempt to burn outside the work area, possibly hitting the rails, or the design will get truncated. Either way ruining your project.
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Haha. This is the eternal fight between boolean states and those who write them and expect understanding
Yes I understand it to essentially allow the machine to “ignore the extents”..which unfortunately still seems like a hack lol
It will work for exactly what I need it for…thank you.
Is it still in the room?
…I’m a little tired of users trying to convince other users that different things are not always LB related errors. Maybe the LB people should be a little more on the sidelines and clarify these kinds of questions before they start giving this kind of discussions.
…just my 5 cents—
I see this thread marked as solved, which is great. I am going to ask everyone to “Please play nice”. The tone of some responses is less than friendly. Please keep things neutral. Thank you.
You can Crop or use Mask and Flatten to reduce/remove the unwanted parts of an image.
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It definitely is. The solution that was marked is a hack, and the bug still remains. The powers that be likely think that working as required is likely a feature request so I have marked the suggested hack as the solution, despite it being, quite obviously, a hack.
@MountaineerTradepost - Um, maybe I am missing something, but my specific suggestion solves the need and is the recommended process to remove unwanted elements of an image, which is the intended goal, if I am understanding.
You can remove unused or undesirable parts of an image, and this is our suggested workflow to do so.
I removed the previous “Solved” checkmark from the post. If you find the solution I provide addresses the need, feel free to re-mark my post as the solution. Thank you.
I’m not a huge fan of AI, but I still use it every now and then, here’s what it thinks about how transparent frames can be removed:
…
Removing a transparent border (often called “trimming”) can be done quickly using these methods:
- Fast Online Tools (No Installation)
The easiest way to remove empty space around an image is using a “Trim” tool:
- Trim Transparent Pixels: Automatically detects and removes invisible edges from PNG or WebP files.
- Online PNG Tools: Allows you to manually specify how many pixels to cut from each side or use auto-detection.
- Adobe Photoshop
Photoshop has a specific command for this exact task:
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Go to the Image menu.
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Select Trim….
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Choose Based on: Transparent Pixels.
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Ensure Top, Bottom, Left, and Right are all checked, then click OK.
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GIMP (Free Open Source)
GIMP is excellent for quickly “throwing away” outer transparent pixels:
- Go to Image > Autocrop Image (or Crop to Content in newer versions). This will instantly shrink the canvas to fit only the visible parts of your image.
- On iPhone or iPad
If you want to extract a subject and remove its background entirely:
- Photos App: Open the photo, long-press the subject until it glows, then tap Share or Copy.
- Files App: Long-press an image file, select Quick Actions, and then Remove Background.
[image]Apple Support +3
- Microsoft Office (Word/PowerPoint)
If you just need it to look right in a document:
- Select the image, go to the Picture Format tab, and use the Crop tool to manually pull the edges inward.
…but the fastest and easiest method is to use the options that already exist in LB - in my opinion.
…
How would you describe your request? Is it a tool/function you would like to suggest?
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As already stated, this is no bug. The image has a size. No matter what the pixels are. LightBurn just uses this size (which is absolutely correct). Imagine you have a text document formatted as A3 size. No matter how much text is in it (even only one character), a printer will complain that it won’t fit on an A4/letter page. Because the document is bigger. The same holds for your image.
The solution has been discussed already; just crop the image correctly before adding it to LB. Or use LB to crop it.
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Interesting conversation/topic that just happened to be on my mind this week for reasons much like John’s issue.
I have been using Microsoft photo edit to remove BG and Crop so hadn’t thought to use LB-Crop.workflow improved!
I then thought..If you can put a shape around the image and then use LB Crop, Could I also apply Offset-Shapes to hug the image and then Crop to that shape/outline.
Apparently that does not work but I’m wondering why?
Also, does nesting employ ‘Masking’ when maximising material space.
It won’t work because to offset the shape it needs to be a shape, i.e. a vector image, not a raster image (.jpg, .png, etc.)
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Thanks Tim. I went and read up a bit on uses of offset masking (limited but handy under some circumstances) and also discovered that dither is not vectorized (which seems odd)…I had thought it was.
Here are a couple videos I did that explain different image types and the different image modes in Lightburn.
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