12-08-2019, 01:39 PM
You might get pointed towards the Gimp manual if it leads to better understanding. Not often you do not get some sort of answer.
Scanning. I would avoid jpeg if possible. That is a lossy format and can introduce edge artefacts and from your description of the drawing, might be best avoided. Scanning software often has a tif option, uncompressed is a much bigger file size that jpeg, and scan at a decent pixels-per-inch ( ppi or dpi) 300 ppi is good quality. Open a PDF in Gimp and the default whatever scanned in is 100 ppi. Change that to suit in the import dialogue.
If you can attach a small part of the scanned image, you will get a better answer.
However if you scanned greyscale, change to RGB Image -> Mode RGB. Add a new layer over the top Layer -> New Layer. Set the foreground to red, bucket fill and set the layer mode to multiply
Scanning. I would avoid jpeg if possible. That is a lossy format and can introduce edge artefacts and from your description of the drawing, might be best avoided. Scanning software often has a tif option, uncompressed is a much bigger file size that jpeg, and scan at a decent pixels-per-inch ( ppi or dpi) 300 ppi is good quality. Open a PDF in Gimp and the default whatever scanned in is 100 ppi. Change that to suit in the import dialogue.
If you can attach a small part of the scanned image, you will get a better answer.
However if you scanned greyscale, change to RGB Image -> Mode RGB. Add a new layer over the top Layer -> New Layer. Set the foreground to red, bucket fill and set the layer mode to multiply