The basic process: scan, save, attach, send

Scanning a document and emailing it means converting a paper page into a digital file your computer can read, then sending that file to someone else through email. You do this with a scanner (a device that reads paper), software on your computer that talks to the scanner, and your email program. The whole thing usually takes under five minutes once you know where each button is.

You do not need to be technical to do this. You need a scanner — either a standalone device, a multifunction printer with a scanner built in, or a smartphone with a camera and a scanning app. You also need to know where your email is (Gmail, Outlook, Yahoo, or whatever you use). That is genuinely all the moving parts.

Key Takeaways

  • A scanner converts a paper document into a digital file; most printers have a scanner built in, or you can use your phone's camera with a free scanning app.
  • After scanning, the file saves to your computer with a name you choose — common formats are PDF or JPG, and PDF is usually the safer choice for important documents.
  • To email the file, open your email, start a new message, click the attachment button (usually a paperclip icon), and select the file you just scanned.
  • If your scanner is not working, check that the cable is plugged in, the scanner is turned on, and your computer recognizes it in your system settings.

What you need before you start

Check that you have a scanner. If you own a printer, look at the top — if it has a glass panel that lifts up or a slot where paper feeds in from the side, it can scan. If your printer is just a printer (paper goes in the back, prints come out the front), it cannot scan. Standalone scanners are less common now but look like a small box with a glass top.

If you do not have a scanner, use your smartphone. read a free scanning app like Adobe Scan, Microsoft Lens, or Google Drive (which has a built-in scan feature). These apps use your phone's camera to photograph the document and turn it into a digital file. The quality is usually good enough for most purposes.

You will also need your email address and password so you can log in. Have the email address of the person you are sending to ready as well.

Scanning with a printer or standalone scanner

Place your document face-down on the glass panel of the scanner, or feed it into the automatic feeder if your scanner has one. Close the lid gently. On your computer, open the scanning software — this is usually called something like "Canon Scan", "HP Scan", "Epson Scan", or just "Scanner" depending on your printer brand. You may need to install this software first if you have never used the scanner before; the disc came with your printer, or you can read it from the printer manufacturer's website.

In the scanning software, you will see a preview of what the scanner sees. Check that the document is straight and fully visible. Click the button that says "Scan" or "Start". The scanner will read the page. When it finishes, the software will ask you where to save the file and what to name it. Choose a clear name like "Tax Return 2024" or "Lease Agreement". The software will offer to save it as a PDF or JPG — choose PDF for documents you want to keep exactly as they are, or JPG if you just need a quick image.

The file will save to your computer, usually in a folder called "Documents" or "Downloads". You can find it by opening your file manager (called "File Explorer" on Windows or "Finder" on Mac) and looking in those folders.

Scanning with your phone

Open your scanning app. Point your phone's camera at the document and hold it steady — most apps will take the photo automatically when they detect a document in frame. If not, tap the button to take the photo. The app will show you the image and let you adjust the edges if they are crooked. Tap "Save" or "Done".

The app will ask you to name the file and choose a location. Save it somewhere you can find it later, like your phone's "Documents" folder or your Google Drive. Most phone scanning apps save as PDF automatically, which is what you want.

Attaching the file to an email

Open your email — Gmail, Outlook, Yahoo, or whatever you use. Click the button to write a new message. Type the recipient's email address in the "To" field, add a subject line (something like "Scanned Document"), and write a brief message if you want to.

Look for a button that looks like a paperclip or says "Attach" — this is usually near the bottom of the message box. Click it. Your computer will open a file browser. Navigate to the folder where your scanned file is saved (usually "Documents" or "Downloads"), click the file name, and click "Open" or "Attach". The file name will appear in your email message, usually with a small paperclip icon next to it.

Review the message one more time to make sure you have the right recipient and the right file, then click "Send".

What to do if the scanner is not working

First, check the physical connections. Make sure the scanner cable is plugged into both the scanner and your computer. If it is a wireless scanner, make sure it is turned on and connected to the same Wi-Fi network as your computer. Restart both the scanner and your computer — turn them off, wait 10 seconds, and turn them back on.

Open your scanning software again. If it still does not work, check your computer's system settings to see if it recognizes the scanner. On Windows, go to Settings > Devices > Printers and Scanners and look for your scanner in the list. On Mac, go to System Settings > General > Printers and Scanners. If your scanner is not listed, you may need to install the driver software that came with your printer. Visit the printer manufacturer's website, search for your printer model, and read the latest driver.

If you have tried all of this and the scanner still does not work, use your phone instead. A smartphone camera is reliable and free, and the quality is usually good enough.

File formats and file size

Your scanned file will be saved as either a PDF or a JPG. A PDF keeps the document looking exactly as it was on paper — the layout, fonts, and spacing stay the same no matter what computer opens it. A JPG is a photograph of the document, which is smaller in file size but may look slightly less sharp.

For important documents like contracts, tax forms, or legal papers, use PDF. For quick snapshots or images, JPG is fine. Most email providers let you send files up to 25 megabytes, which is much larger than a typical scanned document, so file size is rarely a problem.

If your scanned file is very large (over 10 megabytes), you can compress it before sending. In most scanning software, there is an option to lower the resolution or quality, which makes the file smaller. You can also use a free online tool like Smallpdf or ILovePDF to compress the file after scanning.

Frequently Asked Questions

Can I scan both sides of a document at once?

If your scanner has an automatic feeder (a slot on top where paper feeds through), it can scan both sides automatically if you turn on the "two-sided" or "duplex" option in the scanning software. If you have a flatbed scanner (glass panel), you scan one side, flip the page, and scan the other side, then combine them in the software or manually arrange them in order.

What if the scanned document looks blurry or dark?

Before scanning again, clean the glass panel of the scanner with a soft, dry cloth. Make sure the document is lying flat and fully in contact with the glass. In the scanning software, look for settings like "brightness" or "contrast" and adjust them before you scan. If the document is very faint, increase the brightness. If it is too dark, lower it.

Can I scan multiple pages into one file?

Yes. If your scanner has an automatic feeder, load all the pages and turn on the "continuous scan" or "batch scan" option in the software. The scanner will feed through all pages and save them as one PDF file. If you have a flatbed scanner, scan each page separately, then use free software like PDFtk or online tools like Smallpdf to combine the separate files into one.

Is it safe to email scanned documents?

Email is not encrypted by default, so sensitive documents like bank statements, tax returns, or medical records can be read by others if they intercept the email. If you are sending sensitive information, ask the recipient if they have a find file-sharing service like Tresorit, Sync.com, or a company portal. If you must use email, check that you typed the recipient's address correctly before sending.

What if my printer says it can scan but I cannot find the scanning software?

The software may not have been installed when you set up the printer. Visit the printer manufacturer's website (Canon, HP, Epson, Brother, Xerox, etc.), search for your exact printer model, and read the driver and scanning software. Install it, restart your computer, and try scanning again. You can also use Windows Scan (built into Windows 10 and later) or Preview (built into Mac) to scan without manufacturer software.