This forum has a built-in PDF viewer (powered by Mozilla's PDF.js) that lets you display PDF documents directly in a post — no downloading required.
Quick Start
Click the PDF button in the post editor toolbar, or use the tags manually.
The Tag Forms
1. Link to any PDF URL
[nobbc][pdf]https://example.com/somefile.pdf[/pdf][/nobbc]
Embeds a PDF from anywhere on the web.
2. Show one of your own attachments
If you've attached one or more PDFs to your post, you can pick a specific one by its position (0 = first, 1 = second, and so on):
[nobbc][pdf=attach-00]your 1st PDF attachment[/pdf] [/nobbc]
[nobbc][pdf=attach-01]your 2nd PDF attachment[/pdf][/nobbc]
This only ever refers to PDFs on your own post — you can't pull in an attachment from someone else's post.
3. Auto-display every PDF attachment on a post
Instead of tagging each attachment individually, you can turn on auto-display for the whole post:
[nobbc][pdf=autodisplay][/pdf][/nobbc]
Every .pdf file attached to that post will render automatically. Turn it back off with:
[nobbc][pdf=noautodisplay][/pdf][/nobbc]
Auto-display is off by default — you need to opt in.
Retired Syntax (do not use)
Some older forum posts reference these forms — they no longer work and should not be copied into new posts:
[nobbc][pdf db-id=1234][/pdf][/nobbc]
[nobbc][pdf post-id=1234][/pdf][/nobbc]
[nobbc][pdf=db-1234][/pdf][/nobbc]
[nobbc][pdf=post-1234][/pdf][/nobbc]
If you're editing an old post that uses one of these, replace it with the current attach-NN form above.
Tips
- The viewer works whether the PDF is a plain URL or your own forum attachment.
- If nothing renders, double check the attachment is actually a
.pdf file — non-PDF attachments are ignored by the tag. - Multiple PDFs on one post are handled independently — you can mix and match individual
attach-NN tags or use autodisplay for all of them at once.