How to make a transparent signature PNG without uploading it
Turn a photo of your signature into a PNG with real transparency — why it has to be a PNG, how to check it worked, and why doing it on your phone beats a website.
Read articleBackground remover · Transparent PNG · Android
One tap erases the background, entirely on your phone. Cut out people, products, pets, logos and signatures, then export a transparent PNG — with no sign-up, no uploads and no watermark.


Private by design
Most background eraser apps upload your pictures to a server to do the work. Cutora runs the AI cutout on-device, so it works in airplane mode and there is no server that could ever receive your photos. The whole app is under 5 MB.
What the app does and does not collect is in the privacy policy.
What Cutora does
Cut out

Backgrounds

Product mode

Export

Pricing
There is no locked core and no watermark. HD and batch exports can be unlocked by watching a short ad if you would rather not pay at all.
The app is under 5 MB, and you can share a photo into it directly from your gallery or WhatsApp.
Take a look
From the blog
Turn a photo of your signature into a PNG with real transparency — why it has to be a PNG, how to check it worked, and why doing it on your phone beats a website.
Read articleQuestions
Yes — Cutora never stamps an export, on the free version or the paid one. PNG with transparency, JPG, WebP and PDF all come out exactly as you made them. Most free background erasers watermark the result or hold full resolution back until you subscribe; Cutora does neither.
Yes. The AI cutout runs on your phone, not on a server, so Cutora works in airplane mode, on a plane, or with no signal. Nothing is uploaded and nothing is queued to upload later.
No. Most background eraser apps send your pictures to a server to do the work, which means your photos sit on someone else's machine. Cutora has no server to send them to — the cutout is computed on your device and the photo never leaves it.
Open the photo in Cutora, let it detect the subject, then preview the cutout against the checkerboard to confirm the background is really gone. Export as PNG and you get true transparency — or copy it straight to the clipboard and paste it into another app.
Use Product mode. It removes the background, places the subject on pure white, auto-centres it and exports a square 1000×1000 image — the size and background Amazon, eBay, Etsy, Shopify and Facebook Marketplace ask for. Batch mode applies the same treatment to a whole set of photos at once.
Photograph your signature on paper, open it in Cutora and use signature mode. It drops the paper background and leaves the ink on transparency, so the PNG can be placed over a contract or a letterhead without a white box around it. No upload, which matters when the image is your actual signature.
Yes. Cut out the subject, add an outline if you want the classic sticker look, and Cutora exports a pack sized to 512×512 — the dimensions WhatsApp requires — ready to add to your sticker tray.
Yes. Batch mode processes a set of photos and applies the same background — transparent, white, a colour or an image — to all of them, which is the point when you are listing a shelf of products rather than editing one picture.
Edge refine gives you feather, smooth and a hair-detail setting for the places automatic detection struggles with. For anything it still gets wrong, the erase and restore brushes let you zoom in and fix the edge by hand.
PNG with real transparency, JPG, WebP, and PDF as a single page or many. There are presets for profile pictures, Instagram posts, stories and e-commerce squares, so you are not resizing afterwards.
Every feature is free. HD and batch exports can be unlocked by watching a short ad, or a single one-time purchase removes all ads permanently. There is no subscription and no feature locked behind one.
Under 5 MB. The cutout model runs on-device, so there is no large download and no waiting for a server round trip on every photo.
Free on Google Play.
Questions? hello@nainnielabs.com · Privacy policy