For customers· 4 min read

Custom Illustration Formats: Print Sizes and Digital Files

Learn custom illustration delivery formats: digital files, print sizes, resolutions. What you receive with your commission.

When you commission a custom portrait or illustration, the final file format and print size you choose can make or break how your artwork looks in person or online. Understanding the differences between digital formats and physical dimensions will save you money, time, and disappointment down the road. Let's break down what you actually need to know before placing an order.

Understanding Print Sizes for Custom Portraits

Print size directly affects both cost and visual impact. Most custom portrait artists charge based on dimensions, so a 5×7" piece costs less than an 11×14" but may lack the detail a larger format reveals.

Standard sizes in the custom portrait world include:

  • 5×7 inches – greeting card or small framed display; entry-level price point ($150–$400 depending on medium)
  • 8×10 inches – sweet spot for headshots, personal gifts, and standard frame availability ($300–$700)
  • 11×14 inches – statement piece; shows fine details clearly ($500–$1,200)
  • 16×20 inches and up – gallery-quality work requiring significant artist time ($1,000+)

Before you request a size, measure the wall space or frame you have in mind. A 16×20" portrait overwhelms a small bedroom but looks underwhelming in a living room with 10-foot ceilings. Ask your artist about the aspect ratio too—a 5×7" is a different shape than a 6×8", which matters if you're fitting a specific frame.

Digital File Formats: What Matters

When ordering a custom illustration or portrait, your artist will deliver files in specific formats. Each serves different purposes.

JPEG is the most common delivery format for finished artwork. It's compressed, easy to email, and works everywhere. However, JPEGs aren't ideal for future reprints since they degrade slightly each time they're saved. A high-quality JPEG at 300 DPI (dots per inch) is acceptable for print shops.

PNG preserves image quality better than JPEG and supports transparent backgrounds, making it perfect if you want to use the illustration on different colored backgrounds or layer it into designs. File sizes are larger.

PDF is underrated for custom portraits. A vector-based PDF scales to any size without quality loss, while a raster PDF works like a high-res image. Ask if your artist offers PDF delivery for flexibility.

PSD (Photoshop) or AI (Illustrator) files give you the layered, editable original. These are gold if you ever want to make tweaks, change colors, or reprint at different sizes years later. Not all artists include these, but it's worth asking—expect to pay $50–$200 extra.

Resolution and DPI: The Technical Reality

This matters most if you're printing. 300 DPI is the professional standard for physical prints; anything below 150 DPI looks blurry in person.

Digital displays only need 72 DPI, so if you're posting your portrait on Instagram or using it as a website header, you don't need massive files. But if you think you might print later, ask the artist for 300 DPI from the start.

File size reflects resolution. A high-quality 11×14" portrait at 300 DPI might be 40–80 MB; that's normal and fine. If an artist hands you a 2 MB file and claims it's print-ready at that size, they're cutting corners.

Choosing the Right Combination

Ask yourself three questions:

  1. Where will this live? Wall display, social media, printed gift, portfolio? Each destination has different requirements.
  2. Might you reprint or resize later? If yes, request editable files and high DPI even if costs slightly more.
  3. What's your budget? Larger prints and premium file packages add $100–$400 to a typical custom portrait order ($400–$1,500 baseline).

When hiring through Mercoly's directory of Custom Portraits & Illustration providers, you can compare artists' standard offerings upfront—some include all file formats; others charge per format. That transparency helps you budget accurately.

Frequently Asked Questions

Q: Can I have my custom portrait printed at multiple sizes if my artist only delivers one version? Yes, but with caveats. If you receive a high-DPI file (300+), print shops can enlarge it somewhat, though quality softens above 200% of original size. Request the largest size you might ever need upfront.

Q: What's the difference between print size and file dimensions? Print size is physical (inches or cm); file dimensions are pixels. A 5×7" print at 300 DPI is 1,500×2,100 pixels, while a web version might be 500×700 pixels.

Q: Should I ask for a CMYK file instead of RGB if I'm printing? Professional print shops convert RGB to CMYK automatically, but asking never hurts—some artists charge a small fee ($20–$50) to profile specifically for your printer.

Browse trusted Custom Portraits & Illustration providers on Mercoly to compare file formats, sizes, and pricing before you commit.

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