pdf - Ruby: gem Prawn: print wraps and goes upside down -


i tried example in watermark existing pdf ruby, when printed generated document, "watermark" printed upside down, if got end of paper, folded on , printed on (but showed through front). in fact, happened because added few more lines of text "pdf.text".

i tried playing page size of new document, :page_size=>"legal", didn't change anything. tried "letter", , "executive", didn't work either.

is there way print without folding over?

it's possible pdf trying watermark has been rotated.

you can use combinepdf gem both fix rotation , add watermarks existing pdf so:

require 'combine_pdf' watermark = combinepdf.load("watermark.pdf").pages[0] pdf = combinepdf.load "content_file.pdf" pdf.pages.each {|page| page.fix_rotation << watermark} pdf.save "content_with_watermark.pdf"

or, can watermark using own text:

require 'combine_pdf' pdf = combinepdf.load "content_file.pdf" pdf.pages.each {|page| page.fix_rotation.textbox 'watermark', opacity: 0.3} pdf.save "content_with_watermark.pdf"

notice #fix_rotation returns self - is, page object - allows chain methods have done in demo code.

as pdf::reader ... have no idea how move 'rotate: 180' actual page's content stream. if insist on using pdf_reader gem, might able find data in it's documentation.

good luck!

p.s.

as far know, prawn dropped it's template support... example referenced shouldn't work newer versions of prawn.


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