Complete guide to preparing files for DTF printing: formats, resolution and tips

DTF (Direct To Film) printing is the ideal technique for customizing garments with vibrant colors and fine details.
But to achieve a professional result, the digital file must be perfectly prepared .
In this guide you will learn what format to use, what resolution you need, and the key steps to make your DTF order by the meter perfect.

1. Recommended file format

PNG with transparent background

It maintains the quality of the colors and allows the design to be transferred without borders.

. High-resolution PDF (ideal for multiple designs on a single sheet).

Avoid JPG : compression causes loss of sharpness and white halos.

💡 Tip : If you use Illustrator or Photoshop, always export in CMYK at 300 dpi .

2. Resolution and size

Minimum resolution: 300 dpi .
This ensures that the print does not appear pixelated.

Adjust the final print size to the actual size of the garment.

Example: a logo for the chest of a t-shirt → 10 cm wide at 300 dpi.

3. Colors and profiles

It works in CMYK color mode to take advantage of the full range that DTF supports.

If your design includes white, make sure the white layer is marked so that the white ink is applied correctly.

4. Funds and transparencies

Check that there are no "ghosts" or shadows in the transparent areas.

Review it with a colored background in the design program to detect imperfections.

5. Text and vectors

Convert text to outlines or curves to avoid font changes.

Vectors scale without losing quality: perfect for logos.

6. Checklist before sending to print

✅ PNG or PDF file

✅ 300 dpi resolution

✅ Colors in CMYK

✅ Correct final size

✅ Well-defined layers of white

✅ Text converted to curves

7. Expert Tricks

Group several designs into one file to make the most of every meter of film .

If the design includes gradients, test a sample first to verify the color transition.

Conclusion

Applying a DTF transfer isn't complicated, but every detail counts to ensure vibrant colors and a print that lasts wash after wash.
At DTF Spain we offer high-quality DTF by the meter , ready to iron in 24 hours.

➡️ Ready to print? Buy your DTF meters here

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