That's just an example to help people understand what a dimension is and
what I'm trying to accomplish. The real pdf drawings are proprietary so
can't show them. But they will not be screen shots. They will be PDF
drawings generated by the CAD (Computer Aided Design) systems.
Greg
On 3/20/2019 1:45 AM, Tilman Hausherr wrote:
That's just an image in a PDF. No way to find that dimension
programmatically (one could use OCR, with all the difficulties)
Tilman
Am 19.03.2019 um 22:18 schrieb Greg Hanowski:
Ok, I've uploaded it to here:
http://www.tekknow.net/MoneyMachine/drawing.pdf
I want to be able to programmatically zoom up on the "4 +/- 0.2"
dimension, for example, highlight it in some way (Put a transparent
yellow over it, or change the color of it), then create an image file
of the zoomed up view.
On 3/19/2019 2:35 PM, Tilman Hausherr wrote:
Hi,
nothing attached, you need to upload it somewhere. It would be
useful to have the PDF too. If you can't share it, then please
create a dummy. Btw I don't have Adobe Professional, only the reader.
Tilman
Am 19.03.2019 um 21:29 schrieb Greg Hanowski:
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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