--- title: "How to scan a document to PDF on Android" description: "Scan a paper document to PDF with an Android phone: frame the page, let edge detection straighten it, pick a filter, and save or share the PDF." canonical: "https://spirikle.com/blog/scan-documents-to-pdf-on-android/" last-updated: "2026-08-25" --- # How to scan a document to PDF on Android Open Scan Clan, point the camera at the page, and let it find the edges. It straightens the photo, evens out the lighting, and gives you a PDF you can send. The whole thing takes about fifteen seconds per page. By Abhishek Chauhan · 25 August 2026 · 2 min read · [How-to guides](/blog/category/how-to-guides/) ## Step by step ### 1. Open the camera Tap the scan button. The viewfinder tracks the page while you frame it, so you do not have to line the shot up squarely — a hand-held photo taken at an angle still comes out flat. ### 2. Take the shot Tap the shutter, or turn on auto-capture and let it fire when the page is steady. Keep shooting to add more pages; they stack into one document. ### 3. Crop if you need to The corners are draggable, so you can pull the crop in or out. Rotating in quarter turns, reordering pages and deleting one mid-edit are all here too. ### 4. Pick a filter Magic Color keeps the colour and whitens the paper. Black and White is the most readable for text. No Shadow and Glare Removal deal with bad lighting. Any page can be reverted to the original photo — editing never destroys the shot. ### 5. Save it The document is saved as a PDF and appears in your library. From there you can share it to any app, print it, save it to your gallery, or download it. ## Getting a cleaner scan Light the page from the side rather than head-on. A lamp directly above a glossy page bounces straight back into the lens, and that white blown-out patch is glare — no filter can recover detail that the sensor never captured. Put the page on a surface that contrasts with it. Edge detection is looking for the boundary between paper and background, and white paper on a white table is the one case that gives it nothing to find. If the page is stapled or bound and will not lie flat, photograph it in two halves and crop each one. Two flat pages read better than one curved one. ## Making the text searchable Text recognition runs on the device, so the scan is not uploaded in order to be read. It pulls the words off the page so you can copy them, names new scans after the text on the page, and lets you search your library by what is written inside a document rather than only by its filename. See also: [how to sign a PDF on your phone](/blog/sign-a-pdf-on-your-phone/) and [how to compress a PDF](/blog/compress-a-pdf-to-under-1mb/). **About the author: Abhishek Chauhan.** Founder of Spirikle and the maker of Scan Clan, a free document scanner app. ## Continue reading - [How to sign a PDF on your phone](https://spirikle.com/blog/sign-a-pdf-on-your-phone/) — You do not need to print, sign and re-scan. Open the PDF in Scan Clan, add your signature, and send it back. You can draw the signature on the screen, or photograph one you wrote on paper and Scan Clan will lift it off the page. - [How to scan a document without a watermark](https://spirikle.com/blog/scan-a-document-without-a-watermark/) — Scan Clan does not stamp anything on your scans. There is no watermark to remove and no upgrade that takes it off, because there is no paid tier here for it to belong to. If you want a watermark — "COPY", "DRAFT", your own name — you can add one deliberately. - [How to remove glare and shadows from a scanned page](https://spirikle.com/blog/remove-glare-and-shadows-from-a-scan/) — Two things ruin a phone scan: the shadow you cast over the page, and the bright patch a lamp leaves on glossy paper. Scan Clan has a filter for each — No Shadow and Glare Removal — and a few centimetres of movement prevents both. > **Scan Clan** is our free document scanner app for Android: it turns paper into clean, straight PDFs with your camera, and can sign, compress and share them — no ads and no subscription. [Get it on Google Play](https://play.google.com/store/apps/details?id=com.spirikle.scanclan). For quick jobs on a computer, try the [free PDF and image tools](/tools/). --- _Scan Clan · https://spirikle.com/blog/scan-documents-to-pdf-on-android/ · published by Spirikle · support@spirikle.com_