Quick answer: separate small downloads and crops from already-large camera photos, then group by the tool each photo needs. In Local Photo Upscaler version 1.1.9, you can select several photos and apply one tool; they process one after another. Try a representative photo before selecting the rest.
Sort the folder into three groups
- Small downloads and crops: consider Upscale if you need more pixels for your intended use. Check width and height in the photo’s information panel rather than judging by the thumbnail.
- Already-large camera photos: decide whether you need a larger whole image at all. A full theoretical 4× enlargement may exceed the app’s approximate 17 MP output ceiling. If you only need a subject, consider a crop first; check its dimensions again.
- Photos with a different problem: grain, slight softness, and face restoration are different tasks. Use the mode guide to choose a tool, then make separate groups. One batch applies one tool.
Pixel dimensions do not establish detail or quality. A large file can still be blurred, and a small file may contain too little information for a useful enhancement. For scans and family pictures, use the old-photo guide rather than applying the same treatment to every image.
Use pixel counts as a planning check
Source megapixels = width × height ÷ 1,000,000. Multiplying both sides by four gives 16 times the source pixel count. The examples below are mathematical calculations, not predictions of the app’s output dimensions.
| Source pixels | Source MP | Theoretical 4× MP | Compared with about 17 MP |
|---|---|---|---|
| 640 × 480 | 0.3072 | 4.9152 | Below |
| 1200 × 900 | 1.08 | 17.28 | Near the approximate ceiling |
| 4032 × 3024 | 12.192768 | 195.084288 | Well above |
The ceiling is approximate, so 17.28 MP is not a precise cutoff test. Larger inputs may be scaled down before the upscale pass. Check the output size shown in the app and inspect the actual finished result. See the resolution guide for the underlying limit, and the print guide for pixel-density calculations.
Run a sample, then a focused batch
- Keep your originals and choose one representative photo from a group.
- Apply the selected tool, compare the result at the same zoom level, and check the finished dimensions. Look for invented texture or lost detail.
- If that treatment suits the group, select several similar photos and apply that tool. Processing is sequential; there is no fixed completion-time promise.
- Review each result in the library before saving or sharing it. Use Enhance Again only when another tool addresses a remaining problem.
A batch saves repeated selection steps; it does not replace reviewing individual results. This page only provides a checklist and arithmetic: it does not select, upload, store, or process your photos.
View Local Photo Upscaler on the App Store. The current U.S. listing, checked October 11, 2026, documents sequential batches and the approximate 17 MP limit.