Fonts need to either be embedded in your PDF or converted to outlines before you submit artwork, because a print studio's computer almost certainly does not have the exact font you used installed. Without one of these two safeguards, the software opening your file quietly substitutes a different font — one that can shift line spacing, change letterforms and even push text out of its box entirely.
Why this happens at all
A design file does not usually contain the font itself, only a reference to its name — for example "Montserrat Bold". When you open that file on your own computer, it works because Montserrat is installed there. Open the same file on a different machine that has never had Montserrat installed, and the software has to guess a substitute, typically falling back to something like Arial or a generic serif. The layout was designed around the shapes and spacing of the original font, so a substitute rarely fits the same space cleanly.
This matters more in print than almost anywhere else because there is no second chance to catch it after printing — unlike a website, where a wrong font is an easy fix.
Embedding vs outlining: what's the difference?
| Embedding fonts | Outlining (converting to curves) | |
|---|---|---|
| What it does | Packages the font data itself inside the PDF | Converts each letter into a vector shape — it is no longer "text" |
| Text remains editable? | Yes, in the original design software | No — it becomes a graphic, like a logo |
| File size | Slightly larger | Similar, sometimes larger for text-heavy documents |
| Reliability | Very high, works in almost all modern design software | Completely reliable — nothing to substitute |
| Best for | Documents likely to be edited again, or with lots of body text | Logos, headlines, and final print-ready files where no more edits are needed |
How to embed fonts
Most professional design software embeds fonts automatically when you export to PDF, provided you choose a "print" or "press quality" export preset rather than a basic "web" one. It is worth checking your specific software's PDF export dialogue for a font embedding or subsetting option and making sure it is switched on rather than assuming it happened by default.
A quick way to check whether fonts embedded correctly is to open your exported PDF on a different device — or ask a friend or colleague to open it — and see whether the text looks exactly as you designed it. If it looks slightly different, embedding may not have worked and it is worth outlining the text instead.
How to outline text
Outlining, sometimes called "creating curves" or "converting to paths", turns each letter into its own vector shape rather than a piece of live text. Once outlined, the text can no longer be edited or spell-checked as words — it behaves like any other vector graphic — but it will look identical wherever it is opened, because there is nothing left to substitute.
- Select all text layers before exporting your final artwork.
- Use your design software's "convert to outlines" or "create outlines" command — this is usually found under a Type or Text menu.
- Keep an editable master copy of your file with live text before you outline, in case you need to make changes later.
- Export the outlined version as your final print-ready PDF.
Which should you use?
For most straightforward jobs — a flyer, a business card, a menu — outlining text before export is the safest option, because it removes any possibility of font substitution regardless of what software eventually opens the file. For longer, text-heavy documents such as booklets, embedding fonts is usually more practical, since outlining every line of body text can bloat file size and make later corrections harder.
Either way, the goal is the same: make sure the file you submit does not rely on the receiving computer having the same fonts installed as yours.
The short version
- Fonts are not stored in your file by default — only a reference to their name.
- Embedding keeps text editable and packages the font data inside the PDF.
- Outlining converts text to permanent vector shapes with zero risk of substitution.
- For short jobs like cards and flyers, outline; for text-heavy booklets, embed and keep a live-text master copy.
