how to scale jpeg file in solidworks 1:1
I have scanned a mango shaped model in my printer & converted it into a jpeg file and then opened it into sketch but the problem is how can I scale the file according to the actual product
Accepted answer

You may have to use resize or resample of any photo editing application to make the picture size which corresponds to the actual size of the object. It is the manipulation of DPI (Dots Per Inch).
Any picture has a physical size (actual dimension) which you will get on printing it on a paper irrespective of its appearance in the monitor. When a picture is moved to a new app, like you are trying to fit it in SW environment, it moved with that physical dimension in new environment.
1 Other answer

Hi friend I hope you are great and well-doing.
One of the important things I do every time I want to sketch a picture is to have something such as a ruler near your object in your picture.
or you can do an easier way:
for example, if you have a length of your object, then go to Solidworks sketch and draw a line with that length. Now import your picture and try to fit that object length on your sketch line.
If you have any problem, don't worry, just tell me to explain more for you.