Photo Scanning FAQ: Everything You Need to Know

If you have hundreds or thousands of family photographs, you have probably wondered what it takes to preserve them digitally. How should old photos be scanned? What resolution is best? Should you choose JPEG or TIFF? Can damaged or faded photographs be improved? What about photos still attached to an album? Photo scanning sounds simple, but getting high-quality digital copies involves more than placing a photograph on a scanner. The original's size and condition, the scan's intended use, the scanning resolution, color depth, file format, and post-processing can all affect the final result. This FAQ expands on those recommendations and answers some of the most common questions we receive about scanning family photos.

What resolution should I use when scanning old photos?

For most printed family photographs, 600 DPI is an excellent scanning resolution. It provides substantially more image information than a 300 DPI scan and gives you flexibility for cropping, restoration, and moderate enlargement. A 4 x 6-inch photograph scanned at 600 DPI produces an image approximately 2,400 x 3,600 pixels. That provides plenty of resolution for viewing on modern screens and making quality prints.

For comparison:

• 300 DPI: Good for basic viewing, sharing, and printing approximately at the original size.

• 600 DPI: Excellent for family photo archiving, editing, cropping, and moderate enlargement.

• 1200 DPI: Useful for very small photographs, wallet-size prints, or images requiring significant enlargement.

Higher resolution is not automatically better. Once you exceed the actual amount of detail contained in the original photograph or the optical capabilities of the scanner, increasing the DPI can produce much larger files without adding meaningful detail. For most family photo collections, 600 DPI is a practical balance between image quality, file size, and scanning time.

Why does the size of the original photo matter?

DPI describes how many pixels are captured for each inch of the original. That means a small photograph needs a higher scanning resolution if you want to produce a large digital image. For example, a 2 x 3-inch photograph scanned at 600 DPI produces approximately 1,200 x 1,800 pixels. A 4 x 6-inch photograph scanned at the same resolution produces approximately 2,400 x 3,600 pixels. This is why a small wallet photograph may benefit from a 1200 DPI scan even though a standard 4x6 photograph may only require 600 DPI.

Do I really need 600 DPI if I only want to view my photos on my computer?

Not necessarily. If your only objective is casual viewing or sharing online, 300 DPI can produce a perfectly usable digital image. However, your plans can change. A photograph scanned at a low resolution cannot be magically converted into a genuinely high-resolution scan later. Increasing the pixel dimensions with software may make the file larger, but it does not recreate detail that was never captured. If you are scanning irreplaceable family photographs, it generally makes sense to capture more information the first time rather than scanning the collection again later.

What resolution should I use for photo restoration?

If you plan to repair scratches, remove stains, correct fading, crop the image, or perform other restoration work, a higher-resolution scan provides more information for the restoration process. For most printed photographs, 600 DPI is a strong starting point. Very small photographs or photographs requiring extensive enlargement may justify 1200 DPI.

A good workflow is to create a high-quality master scan first and perform restoration or other editing on a copy. This preserves an untouched original scan that can always be returned to later.

Should I scan photographs as JPEG or TIFF?

This is one of the most important decisions when creating a long-term digital archive.

JPEG files are convenient because they are relatively small and compatible with virtually every computer, phone, website, and photo application. However, JPEG uses lossy compression, which discards some image information to reduce file size. TIFF is a better choice when creating an archival master because it can preserve the scanned image without the same type of lossy compression used by JPEG. A practical approach is to keep a high-quality TIFF master and create JPEG copies for everyday viewing, sharing, printing, or uploading to online services. The U.S. National Archives and other preservation organizations recommend uncompressed or losslessly compressed formats such as TIFF for archival master images.

What is the difference between DPI and pixels?

These terms are often confused. DPI (dots per inch) describes scanning resolution. Pixels describe the dimensions of the resulting digital image. For example, a 4 x 6-inch photograph scanned at 600 DPI produces approximately 2,400 x 3,600 pixels. The number of pixels is ultimately what determines how much digital image information you have available for viewing, cropping, editing, and printing. The important point is that DPI and original photo size work together. A 600 DPI scan of a small photograph does not necessarily contain as many pixels as a 600 DPI scan of a large photograph.

Should old black-and-white photographs be scanned in color?

In most cases, yes. Even an apparently black-and-white photograph can contain subtle tones and discoloration caused by aging. A color scan can preserve information about the original photograph that may be lost if converted immediately to grayscale. A high-quality color master also gives you more flexibility for future restoration. Afterward, a black-and-white version can be created if that is how you want the finished photograph to look.

Can faded or yellowed photographs be corrected?

Often, yes. Older photographs may develop yellow, red, or brown color casts as the photographic materials age. Fading can also reduce contrast and make the photograph appear washed out.

Digital post-processing can often improve:

• Color balance

• Brightness

• Contrast

• Exposure

• Fading

• Color casts

• Dust

• Small scratches

• Minor image defects

However, restoration has limits. If information has completely disappeared from a severely damaged photograph, software cannot always recreate the original detail accurately.

A good scan is therefore the first step in any restoration project.

Can you remove dust and scratches from scanned photographs?

Epson V800 Scanner

Yes. Digital dust and scratch removal can make a substantial difference, particularly with photographs that have been stored for decades. However, automatic filtering should be used carefully. Excessive noise reduction or sharpening can remove legitimate photographic detail and make faces look unnatural. Professional photo scanning can combine automated processing with manual adjustments to achieve a more natural result.

Can photographs be cropped during scanning?

Yes. Cropping is useful when a photograph has large borders, uneven edges, or unwanted areas around the image. However, it is usually preferable to preserve the complete photograph in the master scan whenever possible. A separate cropped version can then be created for printing or sharing. This is particularly important with older photographs where the border may contain handwritten dates, names, studio markings, or other historical information.

Can you scan photographs that are still in an album?

Often, yes. Some old photo albums are difficult or risky to disassemble because photographs are permanently mounted, attached with adhesive, or otherwise difficult to remove without damaging them. In these situations, the entire album page can sometimes be scanned and the individual photographs digitally separated afterward. TapedMemories offers album scanning in situations where photographs are difficult to remove; each photograph can be digitally cropped so that individual image files can be created.

What about very old, fragile, or damaged photographs?

Fragile photographs require additional care. Photographs may have:

• Torn edges

• Creases

• Stuck surfaces

• Peeling emulsion

• Water damage

• Mold

• Severe fading

• Brittle paper

• Adhesive residue

Do not force a photograph out of an album or attempt aggressive cleaning if it appears fragile. The original photograph may be more valuable than the resulting scan, so preservation should come first. If a photograph is particularly fragile or irreplaceable, professional handling may be preferable to experimenting with home scanning equipment.

Can you scan Polaroids?

Polaroid Supercolor Camera

Yes, but Polaroid photographs can present unique challenges. Older instant photographs can develop fading, color shifts, chemical deterioration, surface damage, and other age-related problems. They should be handled carefully, particularly if the surface is cracked, peeling, or otherwise unstable. A good scan can preserve the photograph as it exists today, while digital restoration can sometimes improve its appearance.

Can you scan negatives and slides?

Yes, but negatives and slides are fundamentally different from printed photographs.

A 35mm negative or slide contains a very small image, so it requires much higher scanning resolution to capture useful detail. TapedMemories recommends 2400, 3200, or 4800 DPI for slides and negatives depending on the intended use. Small formats such as 110 film require particularly high resolution because the original image is so small. If you have both a print and its original negative, the negative may contain significantly more information and can be the better source for creating a high-quality digital image.

What about 110, 126, 620, 828, Minox, and

other unusual film formats?

Minolta 110 Camera

Not every scanner or photo scanning service can properly handle older film formats.

Small formats such as 110 and Minox contain very small image areas and require appropriate film holders and sufficiently high optical resolution. The correct equipment matters. Simply placing an unusual negative into a standard holder and scanning it at a higher advertised DPI does not necessarily produce a better result. True optical resolution, appropriate film holders, focus, lighting, and scanning technique all affect the final image.

Does a higher advertised DPI always mean a better scanner?

No. This is an important distinction when comparing scanning services or consumer scanners. Some scanners advertise extremely high resolutions that are achieved through interpolation rather than genuine optical resolution. Interpolation creates additional pixels mathematically; it does not necessarily capture additional photographic detail. For archival work, true optical resolution is much more important than an impressive number printed on a scanner's specifications sheet. The National Archives specifically distinguishes effective resolution from simply creating larger pixel dimensions through interpolation.

How important is color depth?

Color depth determines how many shades of color or gray can be represented.

For normal photographic scanning, 24-bit color is common and produces millions of possible colors. Higher bit-depth scanning can provide additional information during demanding restoration and color-correction workflows.

For a family archive, the quality of the scanner and the overall scanning workflow are generally more important than simply choosing the largest possible bit-depth number.

Should I scan everything at the highest possible resolution?

Usually, no. Scanning every photograph at an extremely high resolution creates enormous files, increases processing and storage requirements, and may not provide any meaningful improvement.

A better approach is to match the scanning resolution to:

1. The physical size of the original

2. The amount of detail it contains

3. How important the photograph is

4. Whether restoration is planned

5. Whether you intend to enlarge it

6. How much storage you want to use

For most standard family prints, 600 DPI is a very good all-purpose choice.

What should I do with the digital files after scanning?

Don't consider the project finished when the scanner produces the files. Your digital photographs should be organized and backed up.

A practical system is to maintain:

Master files: High-quality TIFF or other archival-quality files.

Working files: JPEG copies used for editing, printing, and sharing.

Backup copies: Additional copies stored separately from your primary computer.

For especially important family collections, follow the 3-2-1 backup principle: keep at least three copies of your important data, on at least two different types of storage, with at least one copy stored somewhere separate from the others.

Should I organize my photos before scanning?

Yes, if possible. You don't need to spend weeks creating a perfect archive before beginning, but basic organization can save considerable time later.

Consider grouping photographs by:

• Family member

• Year

• Event

• Vacation

• Holiday

• Location

• Family branch

If dates or people are known, record that information while it is still available. The younger generations may not recognize people in photographs that are obvious to you today.

The information written on the back of a photograph can be just as valuable as the photograph itself.

Should the backs of photographs be scanned?

Polaroid Snapshot

Sometimes, absolutely. If the back contains names, dates, locations, notes, newspaper clippings, or other information, it may be worth preserving. For historically important photographs, scanning both sides can preserve valuable context that would otherwise disappear.

What is the best way to preserve the original photographs after scanning?

Digitization does not replace the need to protect the originals. Store physical photographs in a cool, dry, stable environment, away from direct sunlight, excessive humidity, and extreme temperature changes. Avoid storing irreplaceable photographs in attics, garages, or damp basements where environmental conditions can accelerate deterioration.

Digital copies protect against information loss, but the original photographs remain important physical artifacts.

Should I scan my photos myself or use a professional service?

For a small collection of ordinary photographs, scanning at home can be perfectly reasonable. However, a large collection can require hundreds of hours of handling, scanning, cropping, file management, quality control, and backup. Professional scanning can also be advantageous when you have:

• Hundreds or thousands of photographs

• Fragile photographs

• Photo albums

• Slides and negatives

• Unusual film formats

• Important photographs requiring restoration

• A need for consistent color and image quality

The most important consideration is not simply how quickly the photographs can be scanned. It is whether the resulting files will preserve the information you actually care about.

The Bottom Line: Scan Your Photos Once and Scan Them Right

Your family photographs may already be several decades old. They have survived moves, storage boxes, basements, closets, and years of handling. But every year they continue to age. The goal of digitization isn't simply to convert a photograph into a JPEG. It is to capture as much of the original image and its history as practical, preserve that digital master, and create convenient copies that can be shared with family for generations. For most printed photographs, 600 DPI provides an excellent combination of detail and practicality. For small photographs, slides, and negatives, higher resolutions may be appropriate. And for important archival photographs, choosing a lossless master format such as TIFF can provide an additional layer of long-term protection. Most importantly, don't wait until the photograph is damaged beyond repair. The best time to digitize your family photographs is while the original image is still there to be captured.