How to print PCB layout size right?

2017/1/2 14:57:21

PCB layout

There is a PCB has 3 normal ICs, so it need to be accurate in size. I used Adobe Photoshop software to measure size and it is accurate in photoshop. Then I saved it as a JPG picture but the size changed from actual 7.5cm to printed size 6.7cm only!
I tried with different resolution but keeps the same.
Where is the problem? What may be the reason? Are there any setting on PC or printer to print accurate size?

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Julian

2017/1/4 14:57:21

Keep your sharing like this. You have made a nice post and I really learned a lot from you. It will help me work out my new project.

How to print PCB layout size right?

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