How to Scan a Warranty Card with Your iPhone
Scan the warranty card and the purchase receipt in the same session so they export as a single PDF — a warranty claim almost always needs both. Use Document mode, get close enough that the serial number is sharp, and raise contrast on the receipt if it is thermal paper. Export is free with no watermark and the images stay on your iPhone.
Tools used: Crop & perspective fixBrightness & contrastOCR text recognitionPDF conversion
Step by step
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Put the card and the receipt together first
Warranty claims are usually refused for a missing proof of purchase rather than a missing card, so collect both before you start scanning. If the receipt is stapled to the card, remove the staple so each lies flat. Scanning them in one session keeps them in one PDF, which is exactly how you want to find them in two years.
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Capture the serial and model numbers sharply
The serial number is often the smallest print on the card, sometimes on a silver label or embossed rather than printed. Move the phone closer instead of zooming the camera, and let the frame settle so the digits do not blur. Check the number at 100% zoom afterwards — a misread character makes the whole scan useless for a claim.
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Scan the booklet pages that actually matter
Warranty booklets are often multilingual and thirty pages long, most of which is the same text repeated. Capture the registration page, the coverage terms in your language, and the service contact page rather than the whole booklet. Fewer, sharper pages are far more useful than a complete but blurry scan.
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Rescue the receipt before it fades
Store receipts are thermal paper, and thermal print keeps fading with heat and light for as long as it sits in a drawer — often faster than the warranty period itself. Flatten it, place it on a dark matte background, and raise contrast after capture. This is the single strongest argument for scanning a warranty the week you buy the product.
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Export as one searchable PDF
Run OCR so you can later search the file for the model or serial number instead of reading through it. Export the card, terms, and receipt together as one PDF and give it a name you will recognize later. Multi-page documents export as a single file, so the set stays intact.
Frequently asked
- Will a manufacturer accept a scanned receipt as proof of purchase?
- Many do, but it is set by the manufacturer or retailer and varies by product and country. Check their claim instructions before you rely on a scan, and keep the paper original where you can. A clear, unedited PDF showing the date, retailer, and item is the version most likely to be accepted.
- Should the warranty card and receipt be one file or two?
- One PDF is usually better, since a claim needs both and separate files get separated. Put the receipt as the last page so the card and terms read first. If the claim form asks for separate uploads, you can export separate files instead.
- How long will my scanned copy stay readable?
- The scan itself does not fade — that is the whole point, because the thermal receipt underneath it will. Store the PDF wherever you normally keep files on your phone; the app does not maintain a cloud backup of your scans. Making the scan early is what preserves the detail.
- Can OCR read a serial number off a silver or embossed label?
- Metallic labels reflect badly and embossed numbers have almost no tonal contrast, which makes both weak cases for text recognition. Light the label from an angle rather than head-on and verify every character against the product. Do not paste an OCR-read serial into a claim form without checking it.
- Do I need a subscription to scan a warranty?
- No. Scanning, editing, and exporting to PDF or JPG are free, unwatermarked, and work without an account. A purchase unlocks extras such as additional OCR language packs, which is useful for multilingual warranty booklets, but it never locks your finished file.
Last updated 2026-07-28