Here are some tips on how to take the best pictures in JotNot, to get the best-looking scans:

1. Make sure your document is well-lit. If necessary, turn on the torch or flash mode in the upper left of your camera screen.
2. Place the document on a surface that has a contrasting color (such as a brown wooden desk for white sheet music), and try to remove any clutter (especially other pieces of paper) from the area that you will be scanning. This helps JotNot with detecting the edges of your document.
3. Hold the phone as still as possible to avoid blurriness, and hold it parallel to the paper you are scanning.
4. Make sure all four corners of your paper are on the camera screen. JotNot looks for the corners when trying to determine where your document is. If it can't find the corners, it will not detect the edges of your document correctly.
5. Try to make the paper fill up as much of the camera screen as possible, without making any of the corners go off screen. The bigger you make the paper, the more pixels JotNot can devote to your scan, so the better your scan will look.


There are also some settings in JotNot that affect the quality of your scans. Have a look in JotNot's Settings page under the "DOCUMENT" section for these. JotNot remembers any changes you make to these settings for your next scans. Also, all of these settings apply only to new documents, not scans that you created previously.


1. Default Paper Size: This is the size of paper that you are scanning. JotNot has an "Auto" setting, which means it will try to guess the right paper size based on the image, but it does occasionally get it wrong for odd-sized papers, or for images that were taken at a sharp angle rather than parallel to the document. You can set this to a specific paper size here to take the guessing out of it. You can also adjust this while scanning, on the bottom of the screen where you adjust the corners of your document. 


Please note: In some cases, people set the paper size to a specific size (say Business Card) and then forget to change it back when scanning a different size. You will get some very blurry scans if you try to scan a letter-size or A4-size paper using the "Business Card" setting for paper size. Check this setting if you notice blurry scans.


2. Enhancement: This is the type of image processing algorithm that JotNot will apply be default, as you scan. You can adjust this in Settings, or as you scan on the Preview screen, which has the "Save" button in the upper right. For most black-and-white documents, you'll get the best results with the "Document" setting, but for color scans, scanning photographs, for scanning chalkboards or whiteboards, or for other less common scanning situations, you can adjust this setting for better results.


3. File Size: This settings tells JotNot how much compression to apply to the image files that it saves. There is a tradeoff here between image quality and file size; the largest size images will look the best, but they may be big enough that they cause trouble with emailing them out, and if you scan a lot, they'll start to take up a lot of your storage space. Reducing the file size will also reduce the image quality, although for many document types you will be hard-pressed to notice the difference in quality unless you go to the very smallest settings.