imagemagick - rails: produce pdf and render it as image -

-

i'm trying produce pdf , send file, or, better, render image in browser, using imagemagick , wicked_pdf.

i'm able send something, it's not recognized image os. pdf string generated correctly, suppose problem in image part

this code of controller:

  format.jpg     @format = :pdf      pdfstr =  render_to_string 'generated_graphics/tag.erb', :pdf => "tag", :layout => nil, :page_height => '38mm', :page_width => '129mm'      file = tempfile.new('foo')     file.write pdfstr     file.close      require 'rmagick'       pdf = magick::imagelist.new(file.path)     send_data pdf.write("myimage.jpg"), :type => 'image/jpg'   end

take @ imagemagick , rmagick plugin ruby. allows kinds of image conversions, including pdf jpeg.

http://rmagick.rubyforge.org/

edit:

untested sample code:

require 'rmagick'   pdf = magick::imagelist.new("doc.pdf") pdf.write("myimage.jpg")

if doc.pdf has 3 pages, should output 3 images: myimage.jpg.0 myimage.jpg.1 myimage.jpg.2

take @ end of documentation on page, shows similar example multi-frame gif converted multiple pngs


Comments

Post a Comment

Popular posts from this blog

Detect support for Shoutcast ICY MP3 without navigator.userAgent in Firefox? -

-
the current version of mozilla firefox 23.0.1, version not support play mp3 shoutcast streams tcp port different 80 (most common 8000 shoutcast 1.9.8). i use flash when mp3 support not available in html5 audio, way detect is: try{ var = document.createelement('audio'); r = !!(a.canplaytype && !!a.canplaytype("audio/mpeg; codecs=mp3").replace(/^no$/,'')) }catch(e){ r = false; } the support mp3 shoutcast streams in firefox added in version 24 . a.canplaytype("audio/mpeg; codecs=mp3") = in chrome , firefox, chrome support, firefox not support, due current code detect not work firefox. the current version of jquery support ie 6 1.10.2, version not has .browser i think "stylized" way testing features , not querying browsers / versions, notwithstanding here see hard not violate "principle". what "stylized" way of detect mp3 icy support without navigator.useragent in firefox? ther...
Read more

web - SVG not rendering properly in Firefox -

-
i have problem svg renderring in firefox. whilst works in safari, chrome or in ie, doesn't work in firefox. inspecting element seems layers there, background visible if it's z-index higher z-index of others. rendered in firefox: svg logo in firefox link original source file: svg file thanks help. ps: used sketch 3 export svg. if helps somehow. you're experiencing bug 995813 . i fixed bug time ago change still making way through release process example display correctly firefox 31 onwards released on 22 july 2014. in meantime if move fill="white" <mask> element child <use> element work around firefox bug.
Read more

java - JavaFX 2 slider labelFormatter not being used -

-
i have following code not label slider "foo50", etc... 1 expect setlabelformatter call, instead seems have no effect (the slider labelled 50, 100, etc , println's dont run). there missing? not implemented in default 2.2 skin? using oracle java 7 package javafxbugtest; import javafx.application.application; import javafx.scene.*; import javafx.scene.control.*; import javafx.stage.*; import javafx.util.stringconverter; public class javafxbugtest extends application { @override public void start(final stage primarystage) { slider cp = new slider(); cp.setlabelformatter(new stringconverter<double>() { @override public string tostring(double t) { system.out.println("nope?"); return "foo" + t.tostring(); } @override public double fromstring(string string) { system.out.println("he...
Read more