How to Prepare Digital Files for Professional Giclée Printing

A Guide to Image Resolution, 16-Bit RGB Color, and Correct Print Dimensions

Creating a beautiful giclée print begins long before the image reaches the printer. Whether you're an artist reproducing an original painting, a photographer preparing a gallery print, or a designer creating fine art, the quality of your digital file plays an important role in the finished reproduction.

At New Day Printers, we recommend preparing your artwork using professional file specifications to achieve exceptional detail, smooth tonal transitions, and accurate print dimensions.

1. Set Your Image Resolution to 300 PPI

For professional giclée printing, we recommend a resolution of 300 pixels per inch (PPI) at the final print size.

You may frequently see the term DPI (dots per inch), but PPI is the more accurate measurement for digital image resolution. DPI refers to the physical dots produced by a printer on a printing press.

For example, an image intended to print at 16 × 20 inches should ideally measure:

4,800 × 6,000 pixels at 300 PPI.

Recommended Image Dimensions

These dimensions are ideal targets. A lower-resolution file may still produce an acceptable print depending on the artwork, viewing distance, and image quality.

Important: Simply changing an image's resolution setting to 300 PPI does not automatically add genuine detail. The original image must contain sufficient pixel information.

2. Use 16-Bit RGB Color Whenever Possible

For the highest-quality fine art reproduction workflow, we recommend preparing and retaining your master image in 16-bit RGB color, when available.

An 8-bit RGB image provides 256 tonal levels per color channel, while a 16-bit image can preserve substantially more tonal information.

This additional precision is especially useful when editing photographs, paintings, gradients, shadows, and delicate color transitions.

Recommended Color Settings

• Color Mode: RGB Color

• Bit Depth: 16 Bits/Channel when available

• Color Profile: Adobe RGB (1998) or another appropriate embedded RGB profile

• Resolution: 300 PPI at final print dimensions

A properly prepared 8-bit RGB file can also produce an excellent giclée print. Converting an existing 8-bit file to 16-bit does not restore color information that was never captured.

Always embed the image's color profile when saving your file. This helps preserve the intended interpretation of its colors.

3. Set the Exact Finished Print Dimensions

One of the most common mistakes in preparing artwork is submitting an image that does not match the proportions of the requested print size.

For example, an 8 × 10-inch image has a different aspect ratio than an 11 × 14-inch image.

If the proportions do not match, the artwork may require cropping or additional borders to fit the selected dimensions.

Before saving your file, confirm that the image width and height match the exact finished print size you intend to order.

If your artwork includes a white border, decide whether that border is part of the requested finished dimensions.

4. How to Prepare Your File in Adobe Photoshop or Other Image-Editing Software

Adobe Photoshop is commonly used to prepare digital artwork for professional printing, but many other image-editing programs offer similar settings.

Regardless of the software you use, the important requirements are the same: 300 PPI at the intended print size, correct image dimensions, RGB color mode, and preferably 16-bit color when available.

The following instructions use Adobe Photoshop as an example. If you use another program, look for equivalent settings for image size, resolution, color mode, and color profile.

Step 1 — Open your image.

Select Image → Image Size.

Step 2 — Enter the final print dimensions.

Under Document Size, enter the desired width and height in inches.

Step 3 — Set the resolution.

Enter 300 Pixels/Inch.

Step 4 — Check Resample.

If you only want to inspect the image's natural print dimensions without creating or removing pixels, turn Resample off.

If you need to enlarge or reduce the pixel dimensions, enable Resample and select an appropriate resampling method. Review the result carefully at 100% magnification.

Step 5 — Check the color mode.

Select Image → Mode → RGB Color.

If your original file contains 16-bit image data, retain 16 Bits/Channel during editing.

Step 6 — Check the color profile.

Use Edit → Convert to Profile when a color-space conversion is necessary. Avoid using Assign Profile as a substitute for converting color values.

Step 7 — Save your finished file.

Save a high-quality copy at the intended print dimensions with its color profile embedded.

5. Recommended File Formats

For professional giclée printing, we recommend the following formats:

TIFF: Excellent for high-quality artwork and photography. Supports 16-bit RGB images and lossless storage.

PSD: Useful when working with Adobe Photoshop and retaining editable layers or other image information.

JPEG: Suitable for many finished print files when saved at maximum quality, although standard JPEG files are 8-bit and use lossy compression.

For the best results, avoid repeatedly opening, editing, and resaving JPEG files, as repeated compression can reduce image quality.

6. Check Your Image Before Uploading

Before submitting your artwork for printing, review the following:

• Confirm the image is sharp at the intended print size.

• Check the exact width and height.

• Verify the resolution and available pixel dimensions.

• Confirm that the image is in RGB color mode.

• Retain 16-bit image data when available.

• Embed the appropriate RGB color profile.

• Inspect the image for dust, scratches, unwanted marks, and compression artifacts.

• Make sure important details are not unintentionally cropped.

Remember that printing cannot restore detail missing from the original digital image.

7. What If Your Image Is Not 300 PPI?

Not every image arrives in perfect condition or at the ideal resolution.

Older photographs, scanned artwork, and images from digital cameras may need additional preparation before printing.

Depending on the source image, professional resizing, careful sharpening, or other image adjustments may improve the result.

However, enlarging an image does not guarantee that fine detail will be preserved. The quality of the original file remains important.

If you are unsure whether your file is suitable for the print size you want, contact New Day Printers before placing your order.

Professional Giclée Printing at New Day Printers

At New Day Printers, we produce professional fine art and photographic reproductions using premium archival pigment inks and carefully selected fine art papers, including options from Hahnemühle and Red River papers.

Proper file preparation helps us reproduce your artwork with the detail, tonal quality, and appearance it deserves.

Ready to turn your artwork into a professional fine art print?

Explore our Professional Giclée Printing Services and discover our selection of premium fine art printing papers.

Uploading Large Files for Giclée Printing

Our standard product upload system accepts digital files up to 100 MB.

For larger artwork files, particularly high-resolution images intended for large-format giclée printing, we offer an alternative file transfer option.

Simply visit Smash File Transfer to upload your file. When prompted for the recipient's email address, copy and paste the following:

orders@newdayprinters.com

Please include your name and Shopify order number in the transfer message so we can match your artwork to your order.

This allows you to submit large, high-resolution files without reducing image quality or compressing your artwork to meet the standard upload limit.

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