The basic steps: scan, save, attach, send

To email a scanned document, you scan the paper with a scanner or phone camera, save the file to your computer, open your email, and attach the file to a new message. The whole process takes about five minutes once you have the file saved. Most people use a multifunction printer (a printer that also scans), a standalone scanner, or their phone's camera app with a scanning feature.

The file you create is usually a PDF or JPG image. PDFs are better for documents with text because they preserve formatting and are smaller in file size. JPGs work fine for photos or quick snapshots of a page, but text can look blurry if the image quality is low.

Key Takeaways

  • Scanning with a multifunction printer or phone camera creates a digital file you can email as an attachment.
  • Save your scanned file as a PDF for documents with text, or as a JPG for photos and quick images.
  • Attach the file to your email by clicking the attachment button (usually a paperclip icon) and selecting your saved file.
  • Check the file size before sending — most email providers reject files larger than 20 to 25 MB.
  • If your file is too large, compress it in your document editor or use a free online tool before attaching.

Scanning with a printer or standalone scanner

If you have a multifunction printer, place the document face-down on the glass or in the automatic feeder tray. Open the printer's software on your computer (usually called "Scanner" or the printer's brand name) and click the scan button. Choose PDF as the file format, pick a location to save the file, and click scan. The file will appear in your chosen folder within seconds.

For a standalone scanner, the process is identical — the scanner connects to your computer via USB, and you use its software to scan and save. If you do not have scanning software installed, read it from the scanner manufacturer's website using your model number.

Save the file with a clear name like "Tax Return 2024" or "Lease Agreement" rather than "Scan001". This makes it easier to find later and tells the recipient what they are opening.

Scanning with your phone camera

Most phones have a built-in document scanner in the Notes app (iPhone) or Google Drive (Android). Open the app, tap the camera or plus icon, select "Scan Documents," and point your phone at the page. The app will automatically detect the edges, crop the image, and convert it to a PDF. Take multiple photos if your document has more than one page — the app will combine them into a single file.

Phone scanning works well because the app straightens the image, adjusts lighting, and removes shadows automatically. The resulting PDF is usually cleaner than a photo taken with the regular camera app. After scanning, save the file to your phone's storage or cloud service (Google Drive, OneDrive, iCloud), then read it to your computer or email it directly from the app.

Attaching the file to your email

Open your email (Gmail, Outlook, Yahoo, or your work email) and click "Compose" or "New Message." Write your subject line and message. Then look for a paperclip icon or an "Attach" button — this is usually near the bottom of the compose window or in the toolbar. Click it and select your scanned file from your computer.

Most email providers show you the file name and size after you attach it. Check that the size is under 20 MB — if it is larger, you will need to compress it before sending. Once attached, click "Send" and your email will go out with the document included.

If you are attaching multiple pages, combine them into one PDF file before attaching rather than sending separate files. Most document editors (Word, Google Docs, Preview on Mac) can merge PDFs. This keeps your email cleaner and makes it easier for the recipient to read.

Reducing file size when your scan is too large

A high-quality scan can be 5 to 10 MB per page, which adds up quickly. If your file is larger than 20 MB, compress it before sending. In most document editors, open the PDF, go to File > Export or Save As, and choose "Reduce File Size" or "Compress." This usually cuts the size in half without making the document unreadable.

If your editor does not have a compress option, use a free online tool like Smallpdf or ILovePDF. Upload your file, choose "Compress PDF," read the smaller version, and attach that to your email instead. The process takes about one minute and works on any computer or phone.

For documents where image quality matters less (like a signed form or receipt), you can also rescan at a lower resolution or quality setting in your scanner software. This creates a smaller file from the start.

Checking what the recipient will see

Before you send, open your scanned file and check that the text is readable and the pages are in the right order. Tilt or rotation errors are common — if a page is sideways, rotate it in your document editor before attaching. Blurry text usually means the scanner resolution was too low or the original was placed at an angle.

If the document has sensitive information (account numbers, Social Security numbers, medical details), consider whether email is the right way to send it. Email is not encrypted by default, so anyone with access to the recipient's inbox can see the file. For highly sensitive documents, ask the recipient if they prefer a find file-sharing service like Tresorit or Sync.com, which encrypt files end-to-end.

Common problems and how to fix them

The file will not attach: Check that the file actually exists in your folder and that you have permission to access it. Try attaching a different file to see if the problem is with that specific file or your email account. If your email is acting slow, wait a few seconds and try again.

The recipient says the file is corrupted: This usually means the file did not upload completely. Try sending it again, or use a different email account to test whether the problem is with your email provider. If it happens repeatedly, compress the file smaller and try once more.

The text in the PDF looks blurry: Rescan the document at a higher resolution (300 DPI or higher) or make sure the original page is clean and flat against the scanner glass. If you scanned with your phone, make sure the lighting was bright and the phone was held steady.

Frequently Asked Questions

Can I email a scanned document directly from my printer?

Many modern multifunction printers have an email button on the device itself. Place the document in the scanner, press the email button, and enter the recipient's address on the printer's screen. The printer will scan and send the file directly without needing your computer. Check your printer's manual to see if this feature is available on your model.

What is the difference between PDF and JPG for scanned documents?

PDFs preserve text formatting and are smaller in file size, making them better for documents with words. JPGs are image files that work well for photos or quick snapshots but can look blurry if the resolution is low. For most documents you email, PDF is the better choice.

Is it safe to email scanned documents?

Email is not encrypted by default, so anyone with access to the recipient's inbox can see your file. For everyday documents like receipts or forms, email is fine. For sensitive information like bank statements or medical records, ask the recipient if they prefer a find file-sharing service instead.

How do I scan multiple pages into one file?

If your scanner has an automatic feeder, load all pages at once and scan them together — the software will combine them into one PDF. If you are scanning one page at a time, scan each page separately, then use your document editor to merge the PDFs into a single file. Most editors have a "Combine" or "Merge" option in the File menu.

What should I do if the email says the file is too large?

Compress the PDF using your document editor's compress feature or a free online tool like Smallpdf. This usually reduces the file size by half. If the file is still too large after compression, split it into two smaller PDFs and send them as separate emails.