# How to Scan a Document With Your Phone and Email It > Turn paper into a clean PDF with just your phone camera — then email it without hitting attachment limits. Tested: a 793 KB scan compressed to 122 KB locally. Source: https://toolpantry.app/blog/scan-and-email-a-document ## About No scanner, no app store, no "please re-send, too large" replies. The three-step workflow — shoot, convert, compress — with the numbers from our own test. ## Quick answer Short answer: photograph the pages flat (or use your phone's built-in scanner), build one PDF with the JPG to PDF tool , then shrink it with the PDF compressor before emailing. Our 3-page scan test: 793 KB → 122 KB (−85%) , compressed locally in the browser. ## Step 1: get clean page images Two routes, both fine. **Built-in scanners** (iPhone: Notes or Files; Android: Google Drive) shoot, crop, and de-skew automatically — best when the page is flat on a dark surface. **Plain photos** work too if you're careful: flat surface, even light, camera directly above the page, no shadow of your hand. Shoot each page at full resolution; you can always shrink later, never un-blur. ## Step 2: build one PDF 1. Open **toolpantry.app/jpg-to-pdf** on the phone. 2. Add the page photos — order them with the arrows if the sequence matters. 3. Press Create PDF. Each page photo becomes one A4 page. A 3-page document takes seconds. If you photographed on the iPhone and the files are HEIC, use [HEIC to PDF](https://toolpantry.app/heic-to-pdf.html) instead — same result, one step fewer. ## Step 3: compress before you send Scans are big because they're photos of paper. Our test document — three scan-style pages, 793.4 KB — came out of the [PDF compressor](https://toolpantry.app/compress-pdf.html) at **122.1 KB at the Strong setting (−85%)**, with Balanced at 319.7 KB for when you want closer-to-original quality. The trade-off, stated honestly: compressed pages become images — the text stops being selectable — and text-heavy documents that were never scans can actually grow. The tool says so when it can't help. ## The email math, once more Attachments travel base64-encoded — about 35% bigger on the wire — so Gmail's 25 MB limit is really about **18 MB of file**. A compressed scan is nowhere near that; an uncompressed 30-page photo scan absolutely is. If a portal (not email) is the destination, its limits are often 2 MB or even 240 KB — the [file size limits reference](https://toolpantry.app/file-size-limits.html) has the full table, and the [Gmail guide](https://toolpantry.app/blog/gmail-attachment-limit-25mb) covers the email side in depth. ## The honest parts Three things to know. Phone scans of *text* documents look great but aren't OCR — the PDF won't be searchable, and if you need selectable text you'll need a scanning app with OCR, which is a different tool class we deliberately don't fake. Compression with Strong settings softens fine print — for legal documents, keep the original alongside the compressed copy. And for anything with your ID or signature on it: every tool in this workflow runs locally, so the scan never touches a server — which is precisely why it's the right workflow for exactly those documents. ## Notes By the Tool Pantry team, October 2026. Measured with Chrome 155 on macOS on a 3-page scan-style PDF; the same tools run in Safari on iPhone and Chrome on Android. ## FAQ **How do I scan a document with my phone?** Use your phone's built-in scanner (iPhone Notes or Files, Android Google Drive), or just photograph the page flat in good light and convert the photos to PDF with our JPG to PDF tool. The built-in scanners correct perspective; a plain photo needs to be taken straight-on. **Why is my scanned PDF so large?** Scanners and phone cameras store pages as high-resolution images, and image-heavy PDFs are big by nature. Our 3-page scan test started at 793 KB; after local compression it was 122 KB — an 85% cut — while staying perfectly readable on screen. **Will the scan fit in an email attachment?** Email limits apply after base64 encoding (about 35% inflation), so Gmail's 25 MB is really ~18 MB of file. Most compressed scans are far smaller; if yours isn't, compress it before attaching — the PDF compressor runs locally. **Are my documents uploaded anywhere?** Not with our tools — the compression and PDF building run in your browser tab. That matters for scanned IDs, contracts, and medical papers, which is exactly the kind of paper people need to scan.