---
title: "Blog"
description: "Articles from the team behind Scan Clan on scanning documents with your phone, working with PDFs, and getting paperwork done faster."
canonical: "https://spirikle.com/blog/"
last-updated: "2026-08-25"
---

# Blog

How to scan, sign, shrink and share documents — and get paperwork done without the hassle. From the team that makes **Scan Clan**, the free document scanner app.

- [How-to guides](https://spirikle.com/blog/category/how-to-guides/)

- [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 to PDF on Android](https://spirikle.com/blog/scan-documents-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.
- [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.
- [How to compress a PDF to under 1 MB](https://spirikle.com/blog/compress-a-pdf-to-under-1mb/) — Upload forms tend to cap attachments at 1 MB or 2 MB, and a multi-page scan sails past that. Open the document in Scan Clan, choose Compress, and pick a level — the new size is shown before you commit, so you are not guessing and re-doing it.

> **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/).

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_Scan Clan · https://spirikle.com/blog/ · published by Spirikle · support@spirikle.com_