VDJ

When I tried to print a file of a scan of 1,4m by 48cm, I noticed that Paint.NET doesn't seem to know that I have corrected the Custom paper sizes on my pliotter. Both in W10 as in W7. (see attached screendumps) It always insists that Custom 1 through 5 are "11 x 8.5 in." eve though they have been altered locally to match much larger paper sizes on the plotter. Maybe it's because Paint.NET uses the standard print-to-page from Windows ? Paint 4.0.21 - Win 10 Pro 1607 - 8 GB RAM Paint 4.0.21 - W in 7 Pro SP 2 - 4 GB RAM

Hmm, even when the bug is corrected, at 65535 pixels, at 300 dpi, that's: 65535 * 25,4/ 300 = 5548 mm or a bit over 5,5 meters. ☹️

Thank you for going further with this. FYI I have identified our largest scan. It's 272145 x 4639, a monochrome scan @ 400 DPI of a plan over 17 meters long. ?

Glad you could reproduce the problem. ? Points to a memory problem? Because Paint.NET wants to contain the whole image in-memory? ? That's bad news, then. Because we have topographic plans that are longer than 10 m. ?

"destroys" is explained in my OP: " it destroys the image and leaves me with nothing than transparent pixels". In other words, the whole image is transformed into one sheet/layer of transparent pixels. Saving it does not resurrect the image. Paint.NET doesn't crash, but the image is rendered useless, without information, like a clear sheet of glass. Screendump: ok. There's just one: at the moment that I open the Rotate/Zoom, the image turns transparent. If at that moment, I press cancel, it returns. But the whole point is to rotate the image slightly. Attaching the file is a bit difficult, 'cause it is 204 MB in TIF, and 7,6 MB as JPeG, even when 'cleaned up (and not levelled) it's still 5,9 MB. I'm open to suggestions.

I would like to use Paint.NET as an alternative editor for scanned documents. These documents are actually plans, both architectural and topographic. Especially the topographic plans can be 1. very old and 2. very big. A typical topo. plan is 30 cm high and between 3m and 15m. (yes, meters) long. It generates scanfiles of several megabytes, up to 500 MB when scanned to TIF. By default, all scans are done on 999 mm wide. (almost the complete width of the scanner) The scan has to be rotated (+/-90°), cropped, and leveled with the 'Layers>rotate' function, after wich it can be cleaned up with the 'Adjustments>Curves' tool. This works fine on smaller scans. But I have now a scan of + 4m (so, actually not that big) where it goes wrong. Whatever sequence of the above actions I take, also when I save intermediate steps, when I try to level the image, using the 'Layers>Rotate' function, it destroys the image and leaves me with nothing than transparent pixels. Destruction takes place from the moment the windows appears. What do I do? Can this be overcome? Paint 4.0.21 - Win 10 Pro 1607 - 8 GB RAM - the cropped image is 4600x49000 point, about.