Setting Up Your DTF Print Files

Clean Artwork. Correct Sizing. Better DTF Prints.

A professional DTF print begins long before the artwork reaches the printer.

The quality of your final DTF transfer depends heavily on how the artwork file has been prepared.

Low-resolution images, unwanted backgrounds, incorrect dimensions and tiny details can all affect the final result. Some problems may look acceptable on a computer screen but become clearly visible after the transfer has been printed and pressed onto a garment.

This guide explains how to correctly set up your DTF print files before sending them to Drop Of Colour.

Why Correct File Setup Matters

A DTF printer reproduces the information contained inside your artwork file.

It cannot automatically correct:

Blurry images
Pixelated logos
Incorrect colours
White backgrounds
Rough background removal
Stretched artwork
Incorrect print dimensions
Missing design elements
Very thin lines
Unreadable small text

Preparing your artwork correctly helps to:

Improve print quality
Reduce delays
Prevent unwanted backgrounds
Keep print sizes accurate
Improve fine details
Reduce artwork preparation costs
Prevent unnecessary reprints
Speed up the ordering process

The better your artwork file is prepared, the more accurately it can be reproduced as a DTF transfer.

Recommended DTF Artwork Setup

Use the following as a general guide when setting up your DTF print files:

Resolution: 300 DPI at the final print size
Colour mode: CMYK is preferred where available
Background: Transparent
File direction: Normal and readable, not mirrored
Preferred raster format: Transparent PNG
Preferred vector formats: PDF, SVG, AI, EPS or CDR
Artwork size: Set to the exact required print dimensions
Gang sheet width: Maximum usable width of 550 mm
Spacing: Leave at least 5 mm between simple designs
Text: Convert fonts to outlines when supplying editable vector files

These settings are a practical starting point for preparing professional DTF artwork.

Step 1: Start With the Best Original Artwork

Always use the highest-quality original artwork available.

Do not use a screenshot when the original logo or design file exists.

Avoid using images copied from:

WhatsApp
Facebook
Instagram
Google Images
Website thumbnails
Email previews
Screenshots
Photographs of printed logos

Images shared through social media and messaging platforms are often compressed.

Compression reduces the number of pixels and removes fine detail. The artwork may still look acceptable on a phone screen but become blurry when enlarged for a garment print.

💡 Drop Of Colour Pro Tip: Ask your customer for the original artwork file before starting the job. The original designer may have a high-resolution PNG, PDF or vector version available.

Step 2: Set the Correct Print Size

Your artwork should be prepared at the size you want it to print.

Do not rely only on how large the design appears on your computer screen.

A design can appear large on screen while still being set to print at only a few centimetres wide.

Before preparing the file, decide where the transfer will be placed.

Common print positions include:

Left chest
Full front
Full back
Sleeve
Pocket
Neck label
Leg
Cap panel
Tote bag
Workwear branding

General DTF Print Size Guide

These sizes are general starting points only.

Small chest logo: Approximately 70 mm to 100 mm wide

Standard left-chest logo: Approximately 90 mm to 120 mm wide

Adult full-front print: Approximately 250 mm to 300 mm wide

Adult back print: Approximately 280 mm to 350 mm wide

Children’s front print: Approximately 160 mm to 230 mm wide

Sleeve print: Approximately 50 mm to 100 mm wide

Neck label: Approximately 40 mm to 70 mm wide

The correct size depends on:

The garment size
The artwork proportions
The print position
The amount of detail
The customer’s preference
The available garment area

💡 Drop Of Colour Pro Tip: Cut a piece of paper to the intended print size and place it on the garment. This gives you a better idea of how large the completed transfer will look.

Step 3: Use the Correct Resolution

For raster artwork, prepare the file at approximately 300 DPI at the final print size.

DPI means dots per inch. It describes the amount of image detail available for printing.

A design prepared at 300 DPI normally contains enough detail for a clean garment print when viewed at its intended size.

Why Final Print Size Matters

A small 300 DPI image may no longer remain 300 DPI after it has been enlarged.

For example, an image that is 100 mm wide at 300 DPI will lose effective resolution if it is enlarged to 300 mm wide.

The pixels are stretched over a larger area, which can cause:

Blurry edges
Pixelated text
Rough outlines
Loss of facial detail
Jagged curves
Poor small lettering

Increasing the DPI number without adding real image detail does not fix a low-resolution file.

The best solution is to use:

The original high-resolution artwork
A larger source image
A vector version
Professionally recreated artwork

Step 4: Understand Raster and Vector Artwork

DTF artwork generally falls into two categories:

Raster artwork
Vector artwork

Raster Artwork

Raster images are made from pixels.

Common raster formats include:

PNG
JPEG
TIFF
PSD

Raster files are suitable for:

Photographs
Digital paintings
Detailed illustrations
Textured artwork
Designs containing complex shading

Raster artwork must have enough resolution at the final print size.

If it is enlarged too much, the pixels become visible.

Vector Artwork

Vector artwork is created using mathematical paths rather than fixed pixels.

Common vector formats include:

SVG
AI
EPS
CDR
Vector PDF

Vector artwork is suitable for:

Logos
Text
Line art
Simple illustrations
Geometric designs
Business branding

Vector files can normally be resized without becoming pixelated.

However, a file saved as PDF or SVG is not automatically a true vector file. A low-resolution image can still be placed inside a PDF or SVG container.

Step 5: Remove the Background

DTF artwork should normally have a transparent background.

Every visible pixel in the file may become part of the final print.

If your artwork contains a white square or coloured background, that background may print together with the design.

This can create:

White boxes around logos
Coloured rectangles
Rough borders
Unwanted patches
Large solid transfer areas

How to Check for Transparency

Open the artwork in a design program that displays transparent areas as a grey-and-white checkerboard.

You can also place the artwork temporarily over different coloured backgrounds.

Check it over:

Black
White
Red
Blue
Bright green

This helps reveal:

White leftover pixels
Dark outlines
Rough background removal
Transparent shadows
Hidden boxes
Soft halos around the design

💡 Drop Of Colour Pro Tip: A white background and a transparent background can look identical on a white computer screen. Always check the file using a coloured layer behind the artwork.

Step 6: Clean the Artwork Edges

Automatic background-removal tools do not always create clean edges.

After removing the background, zoom in and inspect the entire design.

Look for:

White outlines
Rough edges
Missing sections
Transparent holes
Fringing
Leftover background pixels
Soft unwanted shadows
Parts of the design removed accidentally

Hair, fur, smoke, flames and transparent objects can be difficult to remove cleanly.

These types of artwork may require professional preparation rather than one-click background removal.

Step 7: Be Careful With Semi-Transparent Effects

DTF printing uses a white ink underbase behind the colour layer.

Semi-transparent artwork can behave differently once the white underbase has been added.

Effects that may produce unexpected results include:

Soft drop shadows
Outer glows
Transparent smoke
Faded edges
Feathered background removal
Low-opacity artwork
Transparent gradients
Light reflections
Soft airbrush effects

A shadow that looks grey and transparent on your screen may print with a pale or white halo.

For the most predictable result, use clean edges and intentional solid transparency.

When transparent effects are important, order a test transfer before printing a large quantity.

Step 8: Check Small Text and Fine Lines

Very small text and extremely thin lines may not print clearly.

Artwork can look sharp while zoomed in on a large screen but become difficult to read at the final print size.

Pay special attention to:

Care labels
Contact details
Social media handles
Website addresses
Small slogans
Thin signatures
Fine outlines
Decorative script fonts
Small distressed textures

Check the Artwork at Actual Size

View the artwork at approximately the physical size it will be printed.

Do not inspect small details only while zoomed in at 500% or 1000%.

Ask yourself:

Can the text still be read?
Are the lines thick enough?
Are the spaces between letters still open?
Are small details still visible?
Will the design remain clear after pressing?

When text is too small, consider:

Increasing the text size
Using a heavier font
Increasing line thickness
Removing unnecessary detail
Simplifying the design

Step 9: Keep the Artwork Proportions Correct

Do not stretch or distort the artwork while resizing it.

The width and height should remain linked.

Incorrect resizing can cause:

Round logos to become oval
Faces to appear too wide
Text to look stretched
Products to appear distorted
Brand logos to lose their correct proportions

Resize the artwork from a corner or use the width and height controls with the aspect ratio locked.

Important: Stretched artwork cannot be corrected after it has been printed. The file must be fixed and printed again.

Step 10: Check the Colour Mode

Computer screens normally display colour using RGB.

Printers reproduce colour using ink, commonly through a CMYK-based process.

RGB Colour

RGB stands for:

Red
Green
Blue

RGB colours are created using light.

Screens can display very bright colours that may not be reproducible using standard printing inks.

CMYK Colour

CMYK stands for:

Cyan
Magenta
Yellow
Black

CMYK is designed for physical printing.

Preparing artwork in CMYK can give you a more realistic indication of how certain colours may reproduce.

However, colours can still vary because of:

Monitor brightness
Screen calibration
Ink profiles
White underbase
Garment colour
Heat pressing
Finishing sheets
Fabric texture

Very bright neon, glowing, metallic and reflective screen colours cannot always be reproduced exactly with standard DTF ink.

For colour-critical company branding, order a test print before producing a full run.

Step 11: Use Solid Black Correctly

Black artwork can sometimes be created using a mixture of several CMYK colours.

This is known as rich black.

Rich black can work well in some types of printing, but very heavy ink combinations may not always be necessary for DTF artwork.

For small black text and fine linework, a cleaner black setup may produce sharper results.

When exact colour values are important, provide:

The original brand guide
CMYK values
Pantone references
A previous printed sample where available

Printed colour matching is always affected by the printing process, ink, film, garment and heat application.

Step 12: Convert Fonts to Outlines

When supplying editable vector files, convert your fonts to outlines or curves.

If the printer does not have the font installed, the software may replace it with a different font.

This can change:

Letter shapes
Spacing
Line breaks
Design proportions
Logo appearance

Converting fonts to outlines changes the letters into vector shapes.

This prevents the font from being replaced.

Before converting fonts, save an editable copy of the original design in case the wording needs to be changed later.

Step 13: Remove Hidden and Unwanted Objects

Design files can contain objects that are not immediately visible.

These may include:

Hidden layers
White objects
Clipping masks
Old logo versions
Unused text
Objects outside the page
Invisible rectangles
Duplicate artwork
Locked background layers

Before exporting the final file:

Check all layers.
Delete unused objects.
Remove hidden backgrounds.
Check outside the page area.
Flatten unnecessary effects.
Confirm that only the required design remains.

Hidden objects can increase the file size and may cause unexpected print results.

Step 14: Do Not Mirror the Artwork

Submit your DTF artwork in its normal, readable direction.

Do not mirror the design before sending it to Drop Of Colour.

Mirroring is normally required for cut heat transfer vinyl, but DTF printing uses a different production process.

If you mirror the artwork before submitting it, text and logos may print backwards on the garment.

Important: All wording should be readable normally when you open the final artwork file.

Step 15: Prepare White Artwork Carefully

White artwork can be difficult to see on a transparent or white computer background.

Before sending the file, place it over a dark temporary background.

This allows you to confirm that:

The white design is present
No sections are missing
The edges are clean
The background is transparent
The artwork has not been accidentally deleted
Small white text is readable

Remove the temporary background before exporting.

Do not send a white design on a permanent black rectangle unless the rectangle must be printed as part of the transfer.

Step 16: Check Distressed and Textured Artwork

Distressed designs contain small gaps and missing areas that create a worn or vintage appearance.

These small details can be difficult to print when they are too fine.

Check that the distressed sections are large enough to reproduce properly.

Very small transparent holes may:

Close during printing
Disappear after pressing
Fill with white ink
Create rough print edges

View the artwork at its final print size and simplify very fine texture where necessary.

Step 17: Prepare Photographs Correctly

Photographic DTF artwork should use a high-quality source image.

Avoid using:

Small social media images
Screenshots
Images with heavy compression
Dark underexposed photos
Blurry photographs
Images with important details cropped out

When removing a photographic background, pay close attention to:

Hair
Fur
Clothing edges
Fingers
Smoke
Fine objects
Transparent materials

Photographs may also require adjustments to:

Brightness
Contrast
Saturation
Sharpness
Shadows
Highlights
Skin tones

Always review the image at its intended print size.

Step 18: Set Up Individual DTF Transfers

When sending individual designs rather than a completed gang sheet, include the required print dimensions.

For each design, provide:

File name
Required width
Required height where important
Quantity
Garment position
Customer name where applicable

Use clear instructions such as:

Drop Of Colour logo — 100 mm wide — 10 copies

Back design — 300 mm wide — 5 copies

Neck label — 50 mm wide — 25 copies

Do not use instructions such as:

Small
Medium
Normal size
Same as last time
About this big
Standard chest size

Exact dimensions help prevent misunderstandings.

Step 19: Set Up a DTF Gang Sheet

A DTF gang sheet combines multiple designs onto one continuous sheet.

Drop Of Colour uses a maximum usable DTF printing width of approximately 550 mm.

Your artwork must remain inside this printable width.

Gang Sheet Preparation Tips

Place the largest designs first.
Add medium-sized artwork next.
Use small logos and neck labels to fill suitable gaps.
Leave at least 5 mm between simple designs.
Leave more space around complicated shapes.
Make sure no designs overlap.
Keep all artwork inside the printable area.
Check every design size.
Confirm all quantities.
Remove unused empty space where possible.

A well-prepared gang sheet should balance:

Efficient use of film
Correct print sizes
Enough cutting space
Clear artwork
Easy sorting

Step 20: Name Your Files Clearly

Clear file names help prevent mistakes.

Avoid file names such as:

image1.png
final.png
final-final.png
newlogo2.png
screenshot123.png

Use descriptive file names such as:

Drop-Of-Colour-Left-Chest-100mm.png
Drop-Of-Colour-Back-300mm.png
Customer-Name-Sleeve-80mm.png
Neck-Label-50mm.png
Event-Shirt-Front-250mm.png

Include the size in the file name when possible.

This makes it easier to confirm the correct artwork before printing.

Step 21: Export the File Correctly

The correct export settings depend on the design software and file type.

Transparent PNG

A transparent PNG is suitable for many DTF designs.

Before exporting:

Confirm the background is transparent.
Set the artwork to the correct print size.
Use high resolution.
Keep the full design inside the document.
Do not add unnecessary empty space.
Check that the file is not mirrored.

PDF

PDF can be suitable for vector logos and professionally prepared artwork.

Before exporting:

Embed or outline fonts.
Keep vector objects intact.
Remove unnecessary page backgrounds.
Check transparency.
Confirm the page size.
Make sure the file contains the final artwork only.

SVG, AI, EPS and CDR

Editable vector formats are useful for logos, text and line art.

Before sending:

Convert fonts to outlines.
Remove hidden layers.
Embed linked images.
Expand important effects where necessary.
Check clipping masks.
Confirm the colour setup.
Include a reference PNG or PDF when possible.

Step 22: Open and Inspect the Exported File

Always open the exported file before sending it.

Do not assume that the export was successful because the design looked correct inside the editing program.

Check the exported file for:

Missing artwork
White backgrounds
Incorrect dimensions
Blurry images
Cropped edges
Changed fonts
Missing transparency
Unexpected colours
Hidden objects
Incorrect direction
Export errors

Zoom in and check the edges of the design.

Then view the complete file at normal size.

Step 23: Keep a Final Approved Copy

Save a final approved version of every artwork file.

Do not continue editing the same file after it has been approved and sent for printing.

A useful file structure may include:

Original artwork
Editable working file
Customer proof
Final print file
Completed gang sheet
Order information

Keeping organised records makes repeat orders faster and reduces the risk of using the wrong version.

Common DTF File Setup Problems

The Artwork Prints Blurry

Likely cause: A low-resolution image was enlarged.

Solution: Use the original high-resolution artwork or have the design professionally recreated.

A White Box Prints Around the Design

Likely cause: The artwork background was not transparent.

Solution: Remove the background and export the design as a transparent file.

The Logo Looks Stretched

Likely cause: The aspect ratio was not locked while resizing.

Solution: Return to the original artwork and resize it proportionally.

Text Prints in the Wrong Font

Likely cause: The font was not embedded or converted to outlines.

Solution: Convert the text to outlines before exporting the vector file.

Small Text Is Unreadable

Likely cause: The text is too small or too thin at the final print size.

Solution: Increase the text size, use a heavier font or simplify the design.

A White Outline Appears Around the Artwork

Likely cause: Rough background removal or semi-transparent pixels.

Solution: Clean the artwork edges and remove unwanted transparent pixels.

The Design Prints Backwards

Likely cause: The artwork was mirrored before being submitted.

Solution: Send the file in its normal readable direction.

Colours Look Different From the Screen

Likely cause: RGB screen colour, display settings or printing limitations.

Solution: Prepare the artwork in CMYK where possible and order a test for colour-critical designs.

Parts of the Design Are Missing

Likely cause: Artwork was cropped, hidden or removed during background editing.

Solution: Inspect the complete design and compare it with the original artwork.

The Gang Sheet Is Difficult to Cut

Likely cause: The designs were placed too close together.

Solution: Leave at least 5 mm between simple designs and more around irregular artwork.

Final DTF Print File Checklist

Before sending your artwork to Drop Of Colour, confirm that:

You are using the best original artwork available
The design is set to the correct print size
Raster artwork is approximately 300 DPI at final size
The background is transparent
The artwork edges are clean
No white boxes or unwanted backgrounds remain
The design is not stretched
Text remains readable at final size
Thin lines are thick enough to print
Soft shadows and transparent effects have been checked
White artwork has been checked over a dark background
Fonts have been converted to outlines where required
Hidden layers and unused objects have been removed
The artwork is not mirrored
Colours have been checked
The correct quantities have been confirmed
Gang sheet designs have enough cutting space
All artwork remains inside the 550 mm printable width
The exported file has been opened and inspected
The final approved file has been saved

Frequently Asked Questions

What is the best file format for DTF printing?

A high-resolution transparent PNG is suitable for many designs. Vector formats such as PDF, SVG, AI, EPS or CDR are often better for logos, text and line artwork.

What resolution should my DTF artwork be?

Raster artwork should generally be prepared at approximately 300 DPI at the final print size.

Does my artwork need a transparent background?

Yes, unless the background is intentionally part of the design. Any visible background may print as part of the transfer.

Should I mirror my DTF artwork?

No. Submit the artwork in its normal readable direction unless Drop Of Colour specifically instructs you otherwise.

Should I use RGB or CMYK?

CMYK is preferred where available because it is intended for print. However, the final colour can still be affected by the printer, ink, garment and heat press.

Can Drop Of Colour fix my artwork?

We can assist with identifying common artwork problems. Background removal, resizing, recreation and more complicated design work may require an additional artwork fee.

Can I send a JPEG file?

A JPEG can be used in certain cases, but it does not support transparency and may contain compression. A high-resolution transparent PNG is usually more suitable.

Can I use artwork from WhatsApp?

WhatsApp often compresses images. Request the original artwork file whenever possible.

Can I send a Canva file?

You can export your Canva design as a high-quality transparent PNG or suitable PDF. Always inspect the exported file before submitting it.

What width should my DTF gang sheet be?

Drop Of Colour uses a maximum usable DTF printing width of approximately 550 mm.

How much space should I leave between designs?

Leave at least 5 mm between simple designs as a practical starting point. Leave more space around detailed or irregular artwork.

Can low-resolution artwork be improved?

Small improvements may be possible, but missing image detail cannot always be restored. The best solution is usually to obtain the original high-resolution file or recreate the artwork.

Better Files Create Better DTF Prints

Good DTF printing begins with correctly prepared artwork.

Taking a few extra minutes to check your resolution, print size, transparency, text and export settings can prevent delays and unnecessary reprints.

The most important things to remember are:

Use high-quality original artwork
Set the correct physical print size
Use a transparent background
Keep the design proportions locked
Check small details at actual size
Do not mirror the artwork
Inspect the exported file before sending it

When your files are prepared correctly, Drop Of Colour can reproduce your artwork more accurately and efficiently.

Ready to Print Your Artwork?

Send us your artwork, required print dimensions and quantities, and our team will assist you with professional DTF printing, gang sheet preparation and nationwide delivery.

Email: orders@dropofcolour.co.za

Phone and WhatsApp: +27 63 684 6086

Website: www.dropofcolour.co.za

Delivery: Available throughout South Africa

Drop Of Colour — helping you change the world one drop of colour at a time.

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Learn how to set up DTF print files correctly using the right resolution, size, transparent background, colour mode, file format and export settings.

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Learn how to prepare professional DTF print files with the correct resolution, dimensions, transparent background, colours and export settings before sending your artwork for printing.

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Preparing high-resolution transparent artwork files for professional DTF printing

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Setting Up Your DTF Print Files