Edge detection and cleanup
Live edge detection, auto-capture and perspective correction, for camera scans and imported photos alike. Shadow removal and clean white paper, for one page or all of them.
Sumi: PDF Document Scanner
A PDF scanner app for iPhone that never uploads your scans
Sumi turns paper into clean, searchable PDFs. It finds the edges, cleans up the page, reads the text and names the scan for you, all on your iPhone. No ads, no watermarks, no account.
Coming soon on the App Store
For iPhone, iOS 26 or later. Free to download, with an optional Sumi Pro subscription.
- No ads
- No watermarks
- No account
- No scan limits
- Scans never uploaded
How to scan documents to PDF on your iPhone
Four steps, and Sumi does most of the work.
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Scan
Point your iPhone at the page. Sumi finds the edges, captures the page on its own and keeps going for multi-page documents. You can also import photos and PDFs.
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Clean up
Shadows go and the paper turns white, or pick the Original, Gray or B&W look. Crop with a magnifier, rotate, reorder, and add or delete pages.
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Sumi reads it and names it
Text recognition runs on your iPhone. Sumi names the scan from what's printed on it, like “Salt Meadow Coffee Receipt”, and files it as a receipt, invoice, letter or another kind.
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Share it as a PDF
Send a searchable PDF, JPEG pages, text or CSV, print it, or save it to Files. Choose Auto, Letter, A4 or Legal pages, and see the file size before you send.
Document scanner features that run on your iPhone
Everything below is free, with no limits. The three Sumi Pro tools are further down.
Searchable PDFs
On-device text recognition adds the text of every page to the PDF, so you can search, select and copy it in any PDF viewer. Read the text of a page in Sumi, or export it as .txt or CSV.
Scans that name themselves
No more “Untitled scan”. Sumi names each document from what's printed on it and recognizes receipts, invoices, letters, IDs and more, so you can filter your library by kind.
Tappable totals, dates and links
Totals, dates, phone numbers, emails, links and addresses are pulled out of the text. Tap one to call, open a map, add it to your calendar or copy it.
Find any word on any page
Search your library by any word printed on a document. Spotlight finds your documents too, and shows ID cards by name only, so their details stay out of system search.
PDF copies in the Files app
Every document is also a PDF in the Files app, under On My iPhone › Sumi, organized in your folders. Turn off “Keep PDFs in Files” in Settings if you'd rather not.
Face ID lock
Require Face ID or Touch ID to open Sumi. The lock covers the app. The PDF copies in Files and the Spotlight entries stay outside it, and you can turn both off.
Siri, Shortcuts and quick actions
Scan a document, scan an ID card, import photos or search your documents from Siri, the Shortcuts app or a Home Screen quick action.
Organize and tidy up
Folders, filters by kind, merge, split pages into a new document and duplicate. Deleted documents wait in Recently Deleted for 30 days.
A private document scanner: your scans are never uploaded
Scanning, cleanup, text recognition and naming happen on your iPhone. Your scans, their text, your signatures and the names Sumi gives them are never uploaded to us or to our service providers.
- No ads and no account. There's nothing to sign up for.
- Where your documents live: in Sumi on your iPhone, as PDF copies in the Files app while “Keep PDFs in Files” is on, and in your iPhone's backups, such as iCloud Backup, if you use them.
- What Sumi does send: anonymous usage statistics, such as that a scan was saved or a PDF was shared, and information about the Pro offer and purchases. None of it includes your documents, their text or their names, and none of it is linked to your name.
The details are in the Privacy Policy.
What's free in Sumi, and what Sumi Pro adds
Sumi is free to download. The everyday scanner has no limits and no watermarks. Sumi Pro is an optional subscription for three extra tools.
Free, with no limits
- Scanning from the camera, Photos and Files
- Cleanup and every page edit
- Text recognition and searchable PDFs
- Smart names and tappable details
- Search, Spotlight, Siri and Shortcuts
- Sharing as PDF, images, text or CSV, Files copies and printing
- Face ID lock
Sumi Pro
- Fill & Sign: draw and save your signature, then place signatures, text and dates on any page. Text stays real text in the PDF.
- Password-protected PDFs when you share.
- ID-card scans: the front and back of a card on one page, at real size.
Yearly or monthly, renewing automatically. Prices are shown in the app before you buy, and you can manage or cancel in your Apple Account settings. Anything you made with Pro stays readable and shareable after it ends. See the Terms of Use.
Questions about the Sumi PDF scanner app
Is Sumi a free PDF scanner app?
Sumi is free to download, and scanning, cleanup, text recognition, searchable PDFs, search and sharing are free with no limits and no watermarks. Sumi Pro, an optional subscription, adds Fill & Sign, password-protected PDFs and ID-card scans.
Does Sumi have ads or watermarks?
No. Sumi has no ads, and it never puts a watermark on your scans, with or without Sumi Pro.
How do I scan a document to PDF on my iPhone with Sumi?
Tap the scan button and point your iPhone at the page. Sumi finds the edges, captures the page, cleans it up, reads the text and names the document. Then share it as a searchable PDF, or open it from the Files app.
Are my scanned documents uploaded anywhere?
No. Sumi processes your scans on your iPhone and never uploads them, their text or their names to us or to our service providers. It does send anonymous usage statistics and purchase information, and those never include your documents.
Can I search the text in my scanned PDFs?
Yes. Sumi recognizes the text on each page on your iPhone and adds it to the PDF, so you can search, select and copy it in Sumi, in Spotlight or in any PDF viewer. Spotlight shows ID cards by name only.
Do I need an account to use Sumi?
No. There's no sign-up and no account. Sumi Pro belongs to your Apple Account, so you can restore it on a new iPhone from Settings › Pro › Restore Purchases.
Does Sumi work without an internet connection?
Yes. The camera, cleanup, text recognition and smart names all run on your iPhone, so scanning works without a connection. Buying or restoring Sumi Pro needs one.
Where does Sumi save my scans?
In Sumi's library on your iPhone. While “Keep PDFs in Files” is on, each document is also a PDF in the Files app, under On My iPhone › Sumi.
Can I sign a PDF on my iPhone with Sumi?
Yes, with Sumi Pro. Fill & Sign lets you draw and save your signature, then place signatures, text and dates on any page.
Which iPhones does Sumi work on?
Sumi is made for iPhone and needs iOS 26 or later.