What Should You Use Instead of Publisher for Posters?
Short answer: Canva. It handles large-format sizing and has the deepest poster template library of the three, whether you're printing big or sharing digitally.
Here's the fast path for your poster
Canva supports large-format and custom poster sizes
You're not limited to standard page sizes the way Publisher sometimes felt.
One poster works for print and digital
Resize the same design for a printed poster, a social media post, or a screen display without starting over.
Your old .pub poster rebuilds quickly
Export to PDF, then recreate it in Canva using that as reference — most posters take under 30 minutes.
Word and LibreOffice aren't built for large-format design
Both can technically set a bigger page size, but neither has poster-specific templates or Canva's layout flexibility.
Three tools that can replace Publisher for posters
Canva
Custom and large-format sizing, plus the deepest poster template library of the three tools.
Compare Canva to PublisherLibreOffice
Free forever, and can set a custom page size, though you're designing more from scratch without poster-specific templates.
Compare LibreOffice to PublisherWord
Not built for large-format, image-heavy visual design — expect more friction than either of the other two options.
Compare Word to PublisherHow to actually make the switch
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Decide your final size and where it'll be printed
A home printer, a print shop, or a large-format service each affect which template size you start from.
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Export your current poster to PDF today
Do this from Publisher while you still have access.
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Rebuild the layout in Canva using that PDF as reference
Then resize for any additional formats — social, digital display — you need.
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Confirm your print shop's file requirements before exporting
Size, resolution, and color mode all matter more for large-format printing than for a standard flyer.
Poster questions people actually ask
Can Canva handle a large poster size, not just a standard page?
Yes — Canva supports custom dimensions well beyond standard paper sizes, including common large-format poster sizes.
Do I need different files for print versus social media?
Not necessarily — Canva's resize feature lets you reformat one poster design for multiple sizes without rebuilding it.
What resolution do I need for a large printed poster?
Check with your specific print shop; most require a higher-resolution export for large-format prints than for a standard letter-size flyer.
Is LibreOffice a reasonable choice for a poster?
It can technically set a large custom page size, but it lacks poster-specific templates, so you're designing more from scratch than in Canva.
Should I order a proof before a large print run?
Yes, especially for anything expensive to reprint — confirm colors and sizing on a smaller test print first if your print shop offers one.
Not sure which tool fits your poster?
The Publisher Retirement Kit includes a decision guide made for exactly this kind of call — no guessing required.
Get the Retirement Kit