Get the position of the text (inside or outside a nightclub?)

Hi all

I use simple Ruby to access the contents of a PDF file. This help PDF Reader of yob of GitHub.

Now, I've come a long way, but still have a question that remains! How to get the position of a text object (this object area)?

I read the PDF reference, he told me all sorts of things on the text area, space glyph and user... As English is not my mother tongue, there is a lot to take... I currently have a Community trade mark, a matrix of text and text rendering matrix. I have also all the boxes on the page (media, trim, culture etc..)

For an Image object, I use the values of e and f CTM as x and y. It works perfectly, but when it comes to text, seems to be missing something...

Example:

CTM: Matrix]

[1, 0, 0].

[0, -1, 0],

[-0.0, 640.346, 1]

]

Text matrix = > array]

[10.0, 0.0, 0].

[0.0, 10.0, 0].

[2062769.1732, 42.6732, 1]

] == You need to convert the text in user/device space space!

TRM: Matrix]

[1000.0, 0.0, 0.0],

[- 10.0, 0.0, 0.0].

[2062769.1732, 597.6728, 1.0]

]

I can count the lines and calc a displacement of multipling that number by police in size (e.g. 12 pt), but how can I get the box of you text_object? If I have the box, I can make you whether he fits in a box...

Please help with what I might hurt, or even better if you can help me to find the position of the text!

They are NOT the starting point of the text box.   It is the basic position of the pen, taking the place of drawing the text.  The 'box' versus relies on measures of fonts - what you need to get the widths, leader, etc.  There's a picture of this in the ISO 32000-1 standard (section 9.2.4, I think).  In fact, the entire section text will make this clearer.

Tags: Adobe Developers

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