Converting Pixel to Point

[leenasn]

Hi,

I am developing an application where I need to provide an option to the user for designing in the browser i.e. user can upload an art work and customise the same by adding text etc. Once the user is done with the design, the application should create a PDF which can be used by vendors for printing.

We are using RGhost for creating the PDF file, but has the following questions:

• How to map the pixel being shown the browser to the point system [or rather row, column format?] that RGhost can understand?
• What setting should we use so that the canvas size is set to a standard and make sure that the design is fit into that canvas size?
• Is there anything that we should be doing for the font size i.e. can we assume that the font size that we use in HTML can be used in the same way for PDF too?

Hope these question makes sense. Please let me know if am missing anything.

Thanks, Leena

[shairontoledo]

On point in postscript is equivalent to 1/72.27 in (= 2540/7227 mm ~ 0.35145980351 mm), you can create a class like this one http://www.ruby-doc.org/gems/docs/l/lunks_rghost-0.8.7.6/RGhost/Units/Cm.html that has postscript conversion code and so set the unit you want with RGhost::Config::GS[:unit] like this https://github.com/shairontoledo/rghost/wiki/Units

[shairontoledo]

Configure your fonts or load .ttf config or sorta with :from when defining tags https://github.com/shairontoledo/rghost/wiki/defining-and-using-tags

[shairontoledo]

Didn't get

What setting should we use so that the canvas size is set to a standard and make sure that the design is fit into that canvas size?