Whenever I upload a PDF, it shows in the topic as follows: [image] I’m using Inline PDF to display it in Desktop version. But, in mobile Inline PDF won’t work. Further, Google or other search engines autodetect the PDF files, but whenever the user clicks on those results, the PDF download dialogue will appear instead of opening in a tab. This is a bit unfriendly and most of the users prefer to view the PDF online instead of downloading it at a place and opening. Is there any solution to this? NOTE: I’ve seen this topic PDF onebox instead of download, on uploaded files, but the topic ended without any relation to the original question. Hence, this new topic.

Embed a PDF Stored on Google Drive PDFs display in Mobile as well as Desktop. (My preferred method so PDFs in iFrames display in any device as responsive) Share Copy Share Link Open Share Link in a New Tab Click the 3 Vertical Dots in the Top Right Corner Select Embed Item Copy the Displayed iFrame Code Paste it in the Discourse Composer / Editor Desktop Example… [discourse-pdf-embed-from-google-drive] Mobile Example… [discourse-pdf-embed-mobile-from-google-drive]

Inline PDF does not work for me on desktop either. I’m partially successful displaying PDFs inline when adding them to FileHelper.inline_images lib/file_helper.rb 1c9f30089 def self.inline_images # SVG cannot safely be shown as a document @@inline_images ||= supported_images - %w[svg] end But then a parameter “inline=1” is needed: app/controllers/uploads_controller.rb 1c9f30089 if !FileHelper.is_inline_image?(upload.original_filename) opts[:disposition] = "attachment" elsif params[:inline] opts[:disposition] = "inline" end This could be added in some theme-component (Inline PDF Previews). I would like to learn a clean way to switch discourse to serve PDFs with content-disposition: inline using a plugin or a configuration option.

I managed to write a small plugin for this purpose: https://github.com/thoka/discourse-send-pdf-inline

Instead of downloading PDF, how to force PDF to open/view in browser only?

Product Support

jord8on (Jordan) October 21, 2020, 9:29pm 2

Thanks for raising this question. I’m also curious to know the answer!

Topic		Replies	Views
Add configuration option to serve local PDF uploads inline Feature completed , pdf-previews	2	884	September 5, 2024
Make PDFs open directly (not via download) by default Feature completed , pdf-previews	15	873	February 18, 2026
Can I use pdf.js to serve my site pdf uploads Product Support	1	435	March 29, 2024
Discourse send PDF inline Plugin	11	1961	February 17, 2026
Regression - PDFs download initiated on click (should be open in new tab) Bug pdf-previews , fixed	1	192	June 10, 2026

Instead of downloading PDF, how to force PDF to open/view in browser only?

Related topics