How to Get Your Pharmaceutical Leaflet Print-Ready

Getting a pharmaceutical leaflet to print correctly isn't just about good design. It's about supplying the right file in the right format, with the right specifications. Errors at the artwork stage cost time and money, and in a regulated industry like pharma, delays can have real consequences.

Whether you're preparing a Patient Information Leaflet (PIL), an Information For Use (IFU) document, or a miniature booklet for a medical device, this guide covers everything you need to know before sending your files to a specialist pharmaceutical printer.

Why File Preparation Is Important in Pharmaceutical Print

Standard commercial print has some tolerance for artwork imperfections — colours can shift slightly, bleed can be adjusted. Pharmaceutical print is less forgiving.

Pharmaceutical leaflets must adhere to strict regulatory requirements. Text must be legible at very small sizes. Multilingual content must fit into tightly defined panels. Fold positions must be exact. A file that looks perfect on screen can produce an unusable result if it hasn't been set up correctly for print.

The good news: most issues are entirely preventable with the right preparation.

1. Choose the Right File Format

Preferred format: Print-ready PDF

Always supply artwork as a print-ready PDF (PDF/X-1a or PDF/X-4 are the industry standards).

This ensures:

• All fonts are embedded or outlined
• Images are at the correct resolution
• Colour profiles are preserved

The file is self-contained and won't reflow on a different machine.

Other accepted formats at Lanes Printers:

• Adobe InDesign (.indd) — with all links and fonts supplied, or fonts converted to outlines
• Adobe Illustrator (.ai) — fonts converted to outlines
• Adobe Photoshop (.psd or .tiff) — layers flattened, minimum 300dpi
• QuarkXPress — supply all linked images and fonts separately

If you're unsure whether your file is truly print-ready, our artwork help page explains exactly what we need.

2. Resolution: 300dpi Minimum

Images, logos and any rasterised elements must be at least 300 dots per inch (dpi) at the final print size. This is the baseline for sharp, professional print output.

A common mistake is placing a low-resolution image into a layout at a reduced size — the image may look fine on screen but will print soft or pixelated.

• Set your document resolution to 300dpi (or higher) from the start
• Do not scale up low-resolution images in your layout software — the dpi does not increase
• Photographs should be 300dpi at 100% of their placed size
• Line art and barcodes benefit from higher resolution: 600–1200dpi

For IFU leaflets, which are often printed at very small sizes with dense text, sharp resolution is especially important. Small regulatory text and symbols must remain crisp and readable.

3. Bleed: Add 3mm on All Sides

Bleed is the area of your artwork that extends beyond the finished trim edge. It prevents white borders appearing when the sheet is cut.
Standard requirement: 3mm bleed on all sides.

If your design has a background colour, image or pattern that runs to the edge of the leaflet, it must extend 3mm beyond the trim line. Any element you want to keep away from the trim edge should sit at least 3mm inside it (the "safe zone").

For a small-format pharmaceutical leaflet, this matters even more than on a larger document. The cutting tolerances are tighter, and the consequences of a poorly set-up bleed are more visible. 

4. Colour Mode: CMYK, Not RGB

This is one of the most common errors we see.

Screen-based work — websites, digital documents, presentations — uses RGB colour. Print uses CMYK. The two colour systems have different gamuts, and files supplied in RGB will be converted to CMYK during the printing process. This conversion can cause noticeable colour shifts, particularly in blues, oranges and purples.

Always set up your artwork in CMYK from the start.

If you're working with brand colours, make sure you have the CMYK values from your brand
guidelines. If your brand uses Pantone colours, supply the Pantone references — we can match these accurately on press.

For pharmaceutical products especially, where brand trust and regulatory consistency matter, colour accuracy is not a minor detail.

5. Typography: Minimum Font Sizes and Legibility

Regulatory bodies including the MHRA and EMA set minimum legibility standards for pharmaceutical leaflets. Practically speaking, this means:

• Body text we recommend is no less than 8pt, but it is possible to print smaller and still achieve a crisp finish (we have done packaging for IFUs as small as 5pt) 
• Line spacing should be comfortable — cramped text is a common cause of readout rejection
• Fonts must be embedded or converted to outlines in your PDF
• Avoid very thin font weights at small sizes — they can fill in or break up on press

For miniature booklets, where a large amount of information must fit into a very small footprint, the relationship between font size, line spacing and paper stock becomes critical. We work closely with clients on these specifications.

6. Folding: Supply a Flat Artwork File with Fold Marks Indicated

Pharmaceutical leaflets are typically multi-fold documents. A leaflet that opens to A4 or larger may fold down to fit into a blister pack or carton.

When supplying artwork:

• Provide the flat (unfolded) document as your print file
• Indicate fold positions clearly, either as guide marks or within a separate layer
• Confirm the fold sequence — incorrect fold order is a common cause of reprints
• If in doubt, supply a folded paper dummy or rough mock-up alongside your digital file

If you need a dieline (a template showing fold and cut lines), we can supply one. Just contact our team before starting artwork.
 

7. Multilingual Content

Many pharmaceutical leaflets must carry text in multiple languages to meet EU and UK regulatory requirements. Preparing multilingual artwork correctly requires extra care:

• Allow enough space for text expansion — translated text (especially German and French) can be 30–40% longer than English
• Keep language sections clearly delineated — use consistent panel allocation
• Confirm with your regulatory team which languages are required and in what order
• Never use machine translation for the final approved text — only use certified translations

We regularly produce multilingual IFU leaflets for pharmaceutical clients across the UK and Europe. If you need guidance on how to structure a multilingual layout, our team is happy to advise.

8. Proofing: Don't Skip It

Before a pharmaceutical leaflet goes to press, it should go through a formal proofing process:

• Soft proof: A digital PDF proof reviewed on a calibrated screen
• Hard proof: A physical proof printed at actual size — essential for small-format documents where legibility must be confirmed in print, not on screen

Any regulatory or legal text should be signed off by your compliance team against the printedproof, not just the digital file.

At Lanes Printers, we provide proofs before production and do not proceed to press without your approval.

Quick Reference: Pharmaceutical Leaflet Artwork Checklist

Not Sure If Your File Is Ready?

Our artwork help page has a full breakdown of what we accept. If you're still unsure, send us your file and we'll check it for you before quoting.

We have extensive experience in pharmaceutical printing, from single-page PIL inserts to complex multilingual IFU leaflets and miniature booklets. We'll flag any issues before they become costly problems.

Ready to Get Your Pharmaceutical Leaflet Printed?

Send us your project details and we'll come back to you with a quote. Whether you have print ready artwork or are still in the early stages of your design, our team is here to help.

Get a quote for pharmaceutical printing

Or call us directly on 01843 861314 or email enquiries@lanesprinters.co.uk 

Lanes Printers, Pysons Road Industrial Estate, 16 Patricia Way, Broadstairs, CT10 2LF