duanmao1975
2013-11-13 09:26
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Pdftk表单填充字体调整大小

I'm using pdftk to fill inputs in a pdf form. I have no problem to generate a XFDF file and merge data & template, but sometimes the value is longer than the field, and the text is just cut.

Is there a way to adapt the font dynamically, or something to prevent it to be cut? The PDF generation will be an important part of the appa, and i'm affraid about the risks that wrong values will be sent.

What are the best pratices ? Thanks

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  • dongyun4010 2013-11-13 18:45
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    It's not cut, it's just not shown. Text field can be scrollable. Then, if text doesn't fit, there's visual indicator in field's corner, in e.g. Reader, but that's probably not what you want.

    Text field can have automatic font size, and then best practice, I think, would be to set field height so that it limits text font size for short strings (even for single character), and font size only starts changing (diminishing) when string length exceeds field size.

    Automatic text size is set by zero font size in default appearance /DA entry of field dictionary (or its parent, because this property is inheritable), like this: /Helv 0 Tf 0 g

    But, of course you can post-process merged PDF: calculate string length and adjust font size of offending fields.

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