Discussion What a "print-ready" tri-fold brochure actually looked like today — and the fix

[Brian Liu]

Run a small print shop. Maybe 1 in 5 files come in actually ready for press. Today's was a tri-fold brochure — figured I'd share since I know others deal with this too.
File came in: a PDF the customer generated from Canva. 2 pages, 11 × 8.5 in flat. "It's print-ready."
Opened it up. TrimBox and BleedBox were identical — no bleed anywhere. Both pages had low-res images (129 dpi on one side, 176 dpi on the other). Color was a mix of RGB and CMYK.
What I did:
1. Preflight — logged every issue. No bleed, low-res images, mixed color spaces. Didn't touch the images or colors — just noted them.
2. Added bleed — mirrored the edges out to 0.125 in. Original content inside the trim area stayed exactly where it was.
Here's the before/after with trim and bleed lines overlaid (red = trim, blue = bleed):

3. Panel layout check — since it's a tri-fold, I mapped out the fold lines and panel boundaries to make sure no text was falling into the fold zone.
4. Pixel-level diff — compared the original content area against my output. Result: 0.00% difference. Nothing moved, scaled, or clipped inside the trim area.

End-to-end: about 25 minutes. Customer gets a file that actually works on press, a proof they can approve, and a list of things that didn't get fixed (those low-res images, the mixed color spaces).
(Customer info anonymized — but the file is real.)
I charge for fix time rather than eating it. But I know every shop handles this differently. A couple things I'm curious about from folks here:
- For tri-folds specifically — do you handle the imposition in-house or leave that to the customer?
- At what DPI do you flag an image as "not my problem unless you want me to redraw it"?

 

[Boudica]

We are large format and we don't do brochures or flyers, so I can't help you there.
As for artwork quality.... If I think it looks bad, I'll let the customer know and ask if they can provide something better - higher resolution or vector depending on what it is. Sometimes they can do better, sometimes it is, what it is.

 

[garyroy]

Brian, just curious. You said you run a small print shop. Would it not be hard to leave imposition to the customer? Would someone using Canva actually be that savvy about compose and impose? It would be a miracle if any file received from a customer would be "print ready". Seems like there is always some tweaking to the file that happens. Seems like all customer ideas and artwork require almost, almost a minimum of 60 minutes of artwork intervention if you want the final product to look good for the customer. What is your output device for these files? Are you using Fiery? or another type of imposition software? DM me if you want to.

 

[RabidOne]

You make it sound like this is something new. I come from the offset print world and customers providing useable print files was an issue 30 years ago.
And back then most of the files were coming from designers that should know better.

 

[Brian Liu]

OK sure

 

[Brian Liu]

Brian, just curious. You said you run a small print shop. Would it not be hard to leave imposition to the customer? Would someone using Canva actually be that savvy about compose and impose? It would be a miracle if any file received from a customer would be "print ready". Seems like there is always some tweaking to the file that happens. Seems like all customer ideas and artwork require almost, almost a minimum of 60 minutes of artwork intervention if you want the final product to look good for the customer. What is your output device for these files? Are you using Fiery? or another type of imposition software? DM me if you want to.

OK Sure

 

[Ron at Forest Litho]

I've been doing this for 50 years. I use various print houses like Zoo to do my trifolds and if you get a "ready to print" file in. YOU MUST CHECK IT against the Trifold TEMPLATE that is from the place you are printing it at. There are slight differences between different printers trifoldings. The outside is most critical if you are trying to hit a solid background on the front panel without bleeding into the back panel too much. Hint: You must let a background bleed a little over the fold line on the outside. A slight edge showing on the back is not really noticeable. But a white edge on the cover panel looks like crap! Inside, as long as there is no text block edges going to the fold it will be fine.

 

[netsol]

You make it sound like this is something new. I come from the offset print world and customers providing useable print files was an issue 30 years ago.
And back then most of the files were coming from designers that should know better.

I understand Gutenberg had similar complaints...