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From Greg Hanowski <g...@enventive.com>
Subject Re: Can pdfbox find a dimension in a pdf drawing, zoom up on it, highlight it, and create an image file?
Date Tue, 19 Mar 2019 20:29:29 GMT
I've pasted a screenshot of an engineering drawing.  Dimensions are the 
numbers that define distances between two points.  I want to be able to 
programmatically zoom up on the 12.000 dimension, for example, highlight 
it in some way (Put a transparent yellow over it, or change the color of 
it), then an image file of the zoomed up view.


On 3/19/2019 1:33 AM, Tilman Hausherr wrote:
> Am 18.03.2019 um 22:40 schrieb Greg Hanowski:
>> We get pdf engineering drawings from suppliers.  We need to 
>> programmatically zoom up on a specified dimension, highlight it, and 
>> create an image file of the zoomed up view.  How to specify the 
>> dimension is unknown.  Some dimensions might have the same text so 
>> not sure how to differentiate.  Suggestions welcome.  Can pdfbox do 
>> this? 
> With "dimension" do you mean a rectangle coordinate or this viewport 
> thing? (An exotic feature of PDF)
> "Zoom up" - do you want to make it bigger? Or do you just mean to cut 
> it out?
> Highlight = ? Put a yellow over it?
> It is possible to crop on a specific area by modifying the cropbox of 
> a page, then only the cropped area will be seen. It's also possible to 
> highlight by filling a rectangle and blending this on top.
> Tilman
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