A quick guide to scanning and setting up layers for colouring

Scanning A3 art with a A4 scanner can be a pain but this may help. It’ll be short and sweet and will also include a guide to setting up layers for colouring in part 2. Again this will be short and to the point.

Here’s how to scan a A3 page of b/w line work.

1. Scan half a page in greyscale at 600dpi

2. Rotate canvas so it’s the correct way up.
Image>rotation

3. Adjust the levels so black IS black and white IS white.
Image>Adjustments>Levels
(When the window opens there will be a graph with 3 little arrows. 1 black, 1 grey, and 1 white. Adjust the black and white to your preference. You may also need to trim the bottom of the image if it’s warped from scanning. Trim tool in tool bar on left of screen.)

4. Create room at the bottom of image to accommodate the other half of
the image. (Make sure your colour palette is set black/white)
Image>Canvas Size
Click on the top middle arrow and double the image hight. You should now have half a page of white space below your first image.

5. Scan second half of image and repeat instructions 2 & 3. (Again, you may need to trim any warped image from the top of the page.)

6. Now copy and paste the second image onto the first.
Image 2. Edit>Copy
Image 1. Edit>Paste

7. Now lower the opacity of the lower image via the opacity slider in the
layers window. Bottom right.

8. Now use the move tool in the tools window to move the second image
until it’s lined up with the first. Use the zoom tool get get into the detail.

9. Once it’s lined up and your happy with the levels you can the flatten the
image.
Layers>Flatten Image.

10. Trim the sides and top if needed.

11. Scale the image to whatever size it will be printed. Also adjust the
resolution to 300dpi to save on file size.
Image>Image Size>Hight>Resolution

12. Save your image.

Basic I know, but I hope it helps anyone out there who needs this kind of info. Part 2 tomorrow will cover setting up layers for colouring.

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