How to Scan Art and Sketches for a Portfolio

Avoid flash and warm indoor bulbs to keep the colours true, and export at full resolution for print.

A portfolio lives or dies on how your work looks on screen. A crooked, yellow-tinged phone photo of a drawing does the original no justice — and a gallery, client, or art school judge will notice. A careful scan captures the line work, the paper texture, and the true colours, turning loose sketches into a professional portfolio you can send anywhere.

What you need

• Your phone. Any modern phone camera captures enough detail for a portfolio image.
• Soft, even daylight. Near a window on a cloudy day, or in open shade — never direct sun, which bleaches colours and throws hard shadows.
• A plain, neutral background. A white or grey wall, or a large sheet of plain paper, keeps the focus on the artwork.
• A free scanner. Scanner.cam runs in your browser — no app, no account — and straightens the page automatically.

Scan art and sketches in 5 steps

1. Prepare the piece. Remove it from its frame if you can, brush off dust and eraser crumbs, and lay it flat. A sketchbook page should be pressed open and held flat at the edges.
2. Set up the light. Place the artwork where the light falls evenly across it. If one side is brighter than the other, move the piece — uneven light is the most common reason a scan looks wrong.
3. Turn off the flash. Flash creates a bright hotspot in the middle of the artwork and washes out pencil and watercolour. Natural light, even if dimmer, gives truer colours.
4. Photograph straight from above. Hold the phone directly over the artwork, parallel to it, and fill the frame. Check the corners are all in shot — a cropped corner is the easiest mistake to make.
5. Save at full resolution. Export the scan as a high-quality image or PDF. Do not downscale: a portfolio piece may be printed large, and you cannot add detail back later.

Keep the colours true

Colour is where most art scans fail. The camera's auto white balance guesses at the light, and indoor bulbs turn everything yellow. A few habits keep colours honest:

• Use daylight, not room light. Daylight is neutral; warm bulbs add a yellow cast that is hard to remove afterwards. If you must shoot indoors, use the brightest white light you have and keep mixed light sources out of the room.
• Include a white reference. Place a plain white card next to the artwork in one shot. If the card looks yellow or blue in the photo, the artwork's colours are off by the same amount.
• Compare against the original. After scanning, hold the phone next to the artwork and compare. If the scan looks warmer, cooler, or duller than the original, adjust the light and retake — do not rely on filters to fix it.
• Scan in colour, always. Black-and-white mode loses the subtle washes in watercolour and the warmth of coloured pencil. Even a pencil sketch benefits from a colour scan, which captures the paper tone.

Scan large pieces and sketchbooks

Not every artwork fits in one phone photo. Two approaches work:

• Large loose sheets. Photograph the piece in overlapping sections, keeping the same light and distance for each, then stitch the sections together in an image editor. Overlap each shot by about a third so the joins line up.
• Sketchbooks. Scan one spread at a time, pressing the book flat. If the spine curves the inner edges, scan each page separately rather than the whole spread — a curved page distorts the drawing near the binding.
• Framed work. Photographing through glass adds reflections. If you can, remove the artwork from the frame; if you cannot, shoot in a darkened room with the light coming from behind the camera, and angle the piece slightly to move reflections off the surface.

Build the portfolio PDF

A portfolio is more than a folder of images. Assemble it as one document:

• Order the work deliberately. Lead with your strongest piece, group similar work together, and end on a high note. A portfolio is a story, not a dump.
• One page per piece. Give each artwork its own page with a title, medium, size, and year underneath. Keep the layout consistent so the work, not the design, stands out.
• Keep two versions. A full-resolution print version for submissions that ask for it, and a smaller web version (under 10 MB) for emailing and uploading to portfolio sites.

Frequently asked questions

Can I scan art with my phone instead of a flatbed scanner?
Yes. A phone in soft, even daylight captures most drawings, paintings, and sketches well enough for a portfolio. A flatbed scanner is better for very small, detailed work, but a phone handles large pieces and sketchbooks a flatbed cannot fit.

How do I avoid glare when scanning artwork?
Use soft, indirect daylight and never use flash. For glossy paper or framed work under glass, angle the piece slightly so reflections move off the surface, or shoot in a dim room with the light behind the camera.

What resolution should portfolio scans be?
As high as your phone allows. Full-resolution scans keep fine lines and paper texture sharp and let the work be printed large. Never downscale the master copy — make a smaller web version from it instead.

Should I scan sketches in colour or black and white?
Colour. Even a pencil sketch looks better in a colour scan, which captures the paper tone and the warmth of the graphite. Black-and-white mode throws away information you cannot get back.

How do I scan a sketchbook without damaging the spine?
Open the book flat, support it with your hands or small weights at the edges, and scan one page at a time. Never force a sketchbook flat against its binding — scan each page separately and let the spine keep its natural curve.

Related guides

• How to Scan Old Printed Photos with Your Phone
• How to Remove Glare When Scanning Glossy Photos
• What's the Best DPI for Scanning Old Photos?
• How to Digitize a Family Photo Album