How to localize prices, units, sizes, and offer text in product images
Separate language from market data when localizing prices, units, sizes, and offers, then check every fact against an approved source.

Written by
ThumbTranslator Team
Practical guidance for translating thumbnail and product-image text while protecting meaning, layout, and review quality.
Localize prices, units, sizes, and offers by separating translation from market data. Translate the surrounding words, but obtain every commercial value from an approved target-market source. Then require a human owner to compare the image with that source and the live listing.
A language tool should never choose a price, exchange rate, measurement conversion, size label, stock statement, or offer period. Those are business facts. Even a perfectly translated sentence can be wrong if the number beside it belongs to another market or an expired promotion. Use a manual control process, and verify every market-specific rule separately.
Separate words from market data
Mark every text element in the source image as ordinary language, product data, commercial data, or sensitive label text. Ordinary language might include a section heading. Product data can include dimensions, capacity, quantity, or a variant name. Commercial data includes price, currency, discount, stock, and offer terms. Warnings, ingredients, certifications, and regulated wording need their own qualified review.
Do this classification before translation. If a line mixes words and values, split it into fields in the review sheet. For example, the phrase around a size can be translated while the approved target-market size comes from a separate owner.
Record these fields for each item:
- source wording and location in the image;
- data class and risk level;
- approved source for the target market;
- business owner and language reviewer;
- valid dates or version, where relevant;
- final approved display text.
Use this sheet inside the wider image process. Review ordinary badges and callouts through their own claim-check path.
Verify prices and currency
The pricing owner should supply the exact value and currency display for the target market. Do not copy the source number, calculate an exchange value in the image workflow, or infer a local price from another listing. The current approved record may also contain taxes, rounding, channel differences, or an effective date that the source artwork does not show.
Keep the language task narrow. A reviewer can translate the words around a price, but the pricing owner approves the number, currency, decimal display, and any qualifier. If those owners disagree, the image stays in draft.
| Field | Unsafe shortcut | Required manual control |
|---|---|---|
| Price | Copying the source value into another market | Obtain the current target-market price from its owner |
| Currency | Replacing only the symbol | Approve the complete currency display and value |
| Discount | Translating a percentage without checking the offer | Confirm calculation, dates, scope, and conditions |
| Stock text | Reusing "available" or similar copy | Compare with the current catalog or inventory source |
| Tax wording | Guessing how the displayed price should be described | Use a qualified, current market source |
This process does not provide tax or pricing advice. It simply prevents an image translator or designer from becoming the unrecorded source of a commercial decision.
Convert units and sizes carefully
Measurements and sizes need an approved conversion step before anyone edits the artwork. The product or technical owner should confirm the source value, the target unit or size system, the calculation method, rounding, precision, and approved display. The language reviewer then checks the surrounding words and notation.
Never assume that changing the unit label is enough. The number may need to change, a size may not map directly, or the product may use a named size system instead of a calculation. Do not invent conversion factors or size mappings in the draft or the image.
A manual sequence works well:
- Extract every number, unit, and size from the source image.
- Match each field with the approved product specification.
- Ask the market or product owner for the target display.
- Record the calculation or mapping outside the design file.
- Approve the final value before placing it in the image.
- Check that line breaks do not separate a value from its unit or qualifier.
- Compare the completed artwork with the approved fact sheet.
If no one owns the target value, remove the image from the release queue. A visually polished guess is still a guess.
Check offer dates and qualifiers
Offer copy often fails during shortening. A large discount becomes the visual focus while dates, exclusions, product scope, or eligibility move into tiny text or disappear. Translation can also make a qualifier longer, which puts pressure on the layout.
Create an offer record that includes the approved headline, start and end dates, included products or variants, conditions, exclusions, owner, and channel. The image should use only text approved for that target market and listing. If the offer changes, create a new asset version rather than silently editing the approved file.
Review the hierarchy as well as the words. The qualifier must remain readable at the intended listing size. The translated headline must not imply a wider offer than the approved record. Claims such as "new" or "limited" also need an owner and valid period if the team uses them.
Do not ask an image tool to calculate a price, convert a unit, choose a size, or approve an offer. Place only owner-approved values into the artwork.
Compare with the live listing
Before upload, compare the approved image with the source artwork and current target-market fact sheet. After manual upload, compare the live listing with the approved file and the listing's structured product information. A mismatch between the image and page should stop publication or trigger correction.
Final checklist:
- every price and currency display came from the approved pricing owner;
- every unit and size came from a recorded product or market source;
- no value was copied, rounded, converted, or mapped without approval;
- offer dates, conditions, scope, and qualifiers match the approved record;
- warnings, labels, and regulated wording received appropriate review;
- numbers, symbols, separators, line breaks, and nearby labels are correct;
- the product, variant, locale, asset ID, and version match the listing;
- the uploaded image matches the approved file;
- an owner rechecks the image when a price, offer, specification, or listing changes.
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