FAQs

Question 1

What is your minimum font size?

Accepted Answer

For most products, 6 pt font is the minimum size we recommend for clear, legible text, but there are some important exceptions based on the material and printing method:

- [T-shirts](https://www.stickermule.com/products/custom-t-shirts), [hats](https://www.stickermule.com/products/custom-hats) & [DTF transfers](https://www.stickermule.com/products/dtf-transfers): Go with at least 14 pt to ensure your text reads cleanly on fabric.
- [Paper labels](https://www.stickermule.com/products/paper-labels): We recommend at least 8 pt for crisp, readable results.

Fonts can be tricky. Weight, color, and style all play a role in how your text prints. A bold, simple font might be perfectly readable at a smaller size, while a thin or decorative font may need to be bumped up for clarity.

A lack of contrast between your background and font color (like orange and red) may cause the background to "eat" your font and become difficult to read. Light fonts on a dark background may also pose an issue. Darker ink colors have a tendency to expand into the lighter colors, decreasing the font readability.

Thin fonts can blur, fill in, or lose definition depending on the product and printing surface. What looks sharp on a sticker might fade into the fabric of a shirt or hat. If you're unsure, we always recommend ordering a sample or small order first.

Once you've nailed the perfect size, reordering is quick and easy.

__Related article:__ [What's the recommended line thickness?](https://www.stickermule.com/support/faq/artwork/what-s-the-recommended-line-thickness "what's the recommended line thickness?")

Question 2

How do I design a transfer sticker?

Accepted Answer

When designing your custom [transfer sticker](https://www.stickermule.com/products/transfer-stickers "custom transfer sticker"), there are a few simple guidelines to ensure the best possible quality.

### __How do I prepare my file? __
File preparation is completely optional. Feel free to upload your design as it is, and we’ll make any required modifications before sending you a proof. You can also [download our transfer sticker template](https://www.stickermule.com/template/transfer-stickers "transfer sticker template") and open it in Adobe Illustrator.

### __What colors can you print?__
If you are ordering [full color printed transfer stickers](https://www.stickermule.com/products/printed-transfer-stickers "printed transfer stickers"), we can print your design in any color, and there are no limits to the number of colors your stickers can have.

![examples of printed transfer sticker colors](https://storage.googleapis.com/sm-content/blog/b3bcd9c0-86dc-4d94-b252-8f382d93d88f)

### __What size should my design be?__
Before making adjustments, make sure your design is scaled to the correct size.

The solid parts of your design represent parts of the sticker. To ensure all parts will be preserved, be sure that you can fit a 0.08” circle within the object.

![Be sure that you can fit a 0.08” circle within the solid parts of your design](https://storage.googleapis.com/sm-content/support/fe6d118363aea7856c8635d1a37d9b80f712d467)

The ‘white space’ in your design is what will be discarded. For any area that is white space, you should be able to fit a 0.09” circle within that space.

![Be sure that you can fit a 0.09” circle within the white space of your design](https://storage.googleapis.com/sm-content/support/ffe463238f7a91627bb76eda41d1988cb3b4474c)

### __Can you make my photo into a transfer sticker?__
Yes! If you are ordering [full color transfer stickers](https://www.stickermule.com/products/printed-transfer-stickers "printed transfer stickers"), we can make your photo into a printed transfer sticker. Just upload your image and we'll handle the rest. We may make light edits for print quality, but we'll always show you a proof before anything goes to print.

Need some inspiration? [Check out these 15 awesome transfer sticker designs!](https://www.stickermule.com/blog/15-awesome-transfer-sticker-designs "15 awesome transfer sticker designs")

Related article: [Why won't my design work as a printed transfer sticker?](https://www.stickermule.com/support/faq/transfer-stickers/why-won-t-my-design-work-as-a-printed-transfer-sticker "why won't my design work as a printed transfer sticker?")

Question 3

What's the recommended line thickness?

Accepted Answer

For clean, sharp lines that actually show up the way you want them to, we recommend a minimum line thickness of 1 pt, but depending on the product, you might need to go a little thicker:

- [T-shirts](https://www.stickermule.com/products/custom-t-shirts): At least 1.5 pt for solid, visible lines on fabric.
- [Hats](https://www.stickermule.com/products/custom-hats) & [DTF transfers](https://www.stickermule.com/products/dtf-transfers): Bump it up to 2 pt for best results.

While 1 pt is generally the safe zone, keep in mind that color, image resolution (PPI), and the product you’re printing on can affect how crisp your design appears.

If your line color is too similar to the background (like an orange line on a red background), it may get lost. White or light lines on a dark background may also get lost due to how darker colors expand slightly and "take over" lighter colors. Making lines thicker on a dark background helps keep your lines visible.

Low-resolution artwork may print pixelated or blurry, causing fine lines to lose their sharpness.
Fabric and textured products often require thicker lines so the ink can print cleanly over the surface.

Need a gut check? Upload your design as-is, and we’ll review it and flag anything that might need adjusting during proofing.

And if you’re unsure, you can always order a sample or a small batch first to make sure everything looks just right.

__Related:__ [What is your minimum font size?](https://www.stickermule.com/support/faq/artwork/minimum-font-size "what is your minimum font size?")

Question 4

Are any coupon codes currently available?

Accepted Answer

We do not offer coupon codes or promotional codes for stickermule.com. Additionally, there is no coupon code field during checkout. Sites that offer a specific code or percentage off should be avoided.

We set our prices to be rock bottom to avoid the need for discounts. We always include unlimited free proofs, fast turnaround, and free UPS 2nd Day Air shipping in U.S. With low, minimum thresholds, [international customers](https://www.stickermule.com/support/faq/international/international-shipping-cost "what does international shipping cost?") also receive free shipping on most orders.

__To save more on your order Sticker Mule offers:__

* [Automatic discounts](https://www.stickermule.com/automatic-discounts "automatic discounts"): You pay only for the exact size of your design.
* [Multiple item discounts](https://www.stickermule.com/blog/introducing-multiple-design-discount "multiple design discounts"): The more items in your order, the greater your discount.
* [Bulk discounts](https://www.stickermule.com/support/faq/miscellaneous/can-you-provide-a-discount-for-a-bulk-order "can you provide a discount for a bulk order?"): Large quantities of one design receive a significant discount.

If you want to earn savings, check out our referral program [Commissions](https://www.stickermule.com/commissions "world's best referral program"), where you can earn 5-10% on every order placed by one of your referrals for their 1st year.

Additionally, head over to [our deals page](https://www.stickermule.com/deals "Sticker Mule deals") to check out our current promotions.

Question 5

What file formats do you accept?

Accepted Answer

__We accept all standard file formats.__

Send us your artwork, and we'll provide an online proof within 4 hours. You can request changes to your proof, and we will make them for free until you're happy.

When possible, we suggest uploading vector artwork. Otherwise, we recommend that your artwork be at least 300 pixels per inch. See how you can check the resolution of your artwork [here](https://www.stickermule.com/support/faq/artwork/artwork-ppi "how can I find the PPI of my artwork?").

Read more: [Raster vs. vector artwork](https://www.stickermule.com/support/faq/artwork/raster-vs-vector "raster vs vector artwork")

Question 6

What size is the print area on custom t-shirts?

Accepted Answer

The size of the print area on our [custom t-shirts](https://www.stickermule.com/products/custom-t-shirts "custom t-shirts") and [heavyweight t-shirts](https://www.stickermule.com/products/heavyweight-t-shirts) depends on the t-shirt size and print location. We'll automatically proof your artwork using the largest print area. If you'd like, you can request a specific print size when you upload your artwork or during proofing.

Backside printing is available for full and center positioning and will have the same maximum print area as the front of the t-shirts.

For small/medium custom t-shirts:
![visual comparison of different print areas on custom t-shirts](https://storage.googleapis.com/sm-content/blog/35cf20ec-cc04-4a83-8c53-e2244ec35a49)

For large/x-large custom t-shirts: 
![visual comparison of different print areas on custom t-shirts](https://storage.googleapis.com/sm-content/blog%2F82a2f8c9-a2c1-47c5-b6d9-3fa447789058)

For 2XL custom t-shirts: 
![visual comparison of different print areas on custom t-shirts](https://storage.googleapis.com/sm-content/support/207b844a-9e64-4344-9679-5c43ca8fcb46_1x.png)

Question 7

Can you print QR code stickers?

Accepted Answer

Yes. We can print QR codes onto any [custom sticker](https://www.stickermule.com/custom-stickers) as long as the QR + artwork is at least 300 ppi or better. Just be sure to embed the code into your artwork.

In order to be easily scannable, you need a white border around your QR code and we recommend making the code at least 2" in size to ensure scannability.

There are some instances when we can print the QR code smaller than 2". For example, if the QR code is a very simple design, we can print smaller than the suggested 2", to our minimum size of 1".

Below are examples of QR code designs ranging from simple to complex. Version 2 we could print at 1", while version 6 and 10, we would recommend a size of 2" or larger to ensure scannability.

![QR code](https://storage.googleapis.com/sm-content/support/9488810558e00f80ad3d6f2fbec5ce07d1d6ab28)

There are some design elements that will cause a QR code to be unscannable. The most common include:

__Added graphic elements:__  When graphic elements or photos are added on top of the QR code, the scanner can't determine where the QR code information is located.

![An example of a QR code that will not be scannable](https://storage.googleapis.com/sm-content/blog%2Fadde202f-90bc-48bd-b39f-c8765f7c4c3c)

__Low contrast:__
If the color of the QR code elements and the background color are too similar, the scanner can't differentiate between the two.

![An example of a QR code that is not scannable](https://storage.googleapis.com/sm-content/blog%2F8286f200-1712-426b-ac93-7a1054a99534)

__Skewed or stretched:__
QR code scanners expect the code elements to be squares. The scanner cannot determine the code if it's been skewed or stretched.

![an example of a QR code that is not scannable](https://storage.googleapis.com/sm-content/blog%2Fad7e4bbe-ece9-41b6-a03f-fe3a8c0ca2e8)

Question 8

Can I see a proof before ordering?

Accepted Answer

Any new order will receive a free online proof within 4 hours of checkout. Although we ask for a credit card upfront, we do not charge it until your proof is approved.

Some orders will skip proofing and go straight into production. These include reorders, Store purchases and Studio orders.

Changes will be made to your proof for free until you're happy. You can cancel your order at any time before approval at no charge. The video below shows how our process works.

8 results

Is there a difference between bumper stickers and rectangle stickers?

Can I order a die cut bumper sticker?

What type of adhesive do you use on stickers?

What products are made in Europe?

Can custom wall graphics be used on cars or trucks?

What is the largest sticker you can make?

Can I order a few really large custom stickers?

What is a bumper sticker?