How to Prepare Your Files for Same Day Printing

Are you in a rush to get your printing done? Whether it’s for a sudden business meeting or a surprise birthday party, same day printing can be a lifesaver. But how do you make sure your files are truly print-ready?

At Printbox London, your trusted printing shop in London, we handle same day printing every day. Following these essential file preparation tips will help ensure fast turnaround, accurate colours, and professional results.

Table of Contents

• Understanding File Formats for Printing
• Choosing the Right Resolution
• Using CMYK Colour Mode
• Bleed and Margin Considerations
• Proofreading Your Files
• Final Checks Before Submission
• Conclusion

1. Understanding File Formats for Printing

Choosing the correct file format is the foundation of successful same day printing. We strongly recommend supplying your artwork as a PDF, as it preserves fonts, layout, and graphics accurately.

• PDF: Best format for printing, keeps everything intact
• TIFF: High-quality image format, ideal for photography
• JPEG: Acceptable, but must be high resolution to avoid quality loss

2. Choosing the Right Resolution

Resolution directly affects print quality. All images should be set to at least 300 DPI (dots per inch). Anything lower may appear pixelated or blurry once printed.

This is especially important for flyers, posters, banners, and business cards where visual clarity matters.

3. Using CMYK Colour Mode

Always design for print using CMYK colour mode (Cyan, Magenta, Yellow, Black). RGB is designed for screens and can cause unexpected colour shifts when printed.

Before submitting your file, convert all colours to CMYK to ensure accurate colour reproduction.

4. Bleed and Margin Considerations

Bleed is the extra area around your design that allows colours or images to extend beyond the final trim edge. This prevents unwanted white borders.

• Bleed: 3mm on all sides
• Safe margin: Keep text and logos at least 5mm from trim edge

Including bleed is essential for same day printing, as there is limited time for corrections once printing begins.

5. Proofreading Your Files

Even the best designs can be ruined by small errors. Always proofread your files carefully for spelling mistakes, incorrect contact details, or alignment issues.

We recommend having another person review your artwork before submission to catch anything you might have missed.

6. Final Checks Before Submission

Before sending your files to Printbox London, make sure you complete these final checks:

• All images are embedded and set to 300 DPI
• Colours are converted to CMYK
• Bleed and margins are correctly applied
• Fonts are embedded or outlined
• Text has been fully proofread

7. Conclusion

Preparing your files correctly is the key to fast, stress-free same day printing. By following these steps, you help ensure your prints look professional and are ready without delays.

When you are ready, Printbox London is here to help with reliable, high-quality same day printing across London.