What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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    What are the units on the form width?

    Asked by afgcashout on May 10, 2016 at 12:50 PM

    Having trouble printing on custom paper sizes. Can you help me figure out the max width I should use on a form for it to print nicely on receipt paper (72mm wide) with a default resolution of 203 dpi? Also, how can I shrink the blank spaces between lines on the form so that it isn't as long? Thanks!

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    JotForm Support

    Answered by david on May 10, 2016 at 02:09 PM

    Form width is measure in pixels.  72mm equals roughly 272px.  Most formatting, including line spacing, can be updated using the form designer:

    Line spacing will be under the "Line Layout" tab. 

    If you want to decrease the spacing further, you can add this code to your form:


    .form-line,.form-input-wide {
        margin-top : -10px;
        margin-bottom : -10px;

    Increase the negative value to decrease the spacing.  Positive values will increase spacing.