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LensUp
tools,ai,photo,pdf
`Scan filters: grayscale, clean white-background, B&W, color — plus shadow removal` - `Perspective correction with draggable corners (CamScanner-style)` - `Fade colored pen marks on printed worksheets` - `Compress toward a target size like 200 KB (best effort — returns the smallest achievable file)` - `ID card: front + back at physical card size on one sheet; 2-up / 4-up layouts to save paper` - `Multi-page: reorder by drag, per-page rotate/crop, print & share directly`
Top comment
Hey Product Hunt! 👋 Maker here. LensUp started from a tiny, recurring pain: you photograph a worksheet or a receipt, and the photo looks like a photo — gray paper, shadows, skewed edges — and it's a 4 MB file when the upload form says "under 200 KB". So I built the whole scan pipeline into the browser. Take a photo, drag four corners to fix the perspective, pick a filter (one flattens shadows, one fades colored pen marks on printed worksheets), and export a print-ready A4 PDF. If a portal wants "max 200 KB", you set 200 and it compresses toward that as far as the image allows — and honestly reports the size it actually achieved. There's an ID-card mode that lays front and back at real card size on one sheet, plus a growing set of small one-job tools around it (JPEG→JPG, resize to exact cm, meet minimum-KB limits). The part I care most about: everything runs client-side. No app, no account, no watermark — your files never leave your device. That's not a privacy footnote, it's the architecture: there is no backend to upload to. Two questions for you: What's the most annoying document-upload requirement you've ever hit? (The "signature between 20–50 KB" genre shaped half these features.) If you scan school worksheets or government forms regularly — what's still missing? Thanks for checking it out! 🙏
About LensUp on Product Hunt
“tools,ai,photo,pdf”
LensUp was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #125 on the daily leaderboard. `Scan filters: grayscale, clean white-background, B&W, color — plus shadow removal` - `Perspective correction with draggable corners (CamScanner-style)` - `Fade colored pen marks on printed worksheets` - `Compress toward a target size like 200 KB (best effort — returns the smallest achievable file)` - `ID card: front + back at physical card size on one sheet; 2-up / 4-up layouts to save paper` - `Multi-page: reorder by drag, per-page rotate/crop, print & share directly`
On the analytics side, LensUp competes within Design Tools, Productivity and Photography — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how LensUp performed against the three products that launched closest to it on the same day.
Who hunted LensUp?
LensUp was hunted by yan wang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of LensUp including community comment highlights and product details, visit the product overview.