The basic path: scan, save, attach

Once you have scanned a document into your computer, sending it by email takes three steps. First, open your email program or website and start a new message. Second, use the "Attach" button to browse to the file you just scanned. Third, select the file and it will appear in your email as an attachment. You can then type your message and send.

The attachment button looks different depending on which email service you use. In Gmail, it is a paperclip icon below the compose box. In Outlook, it is also a paperclip, located in the toolbar at the top. In Apple Mail, the button is labeled "Attach Files" in the compose window. Yahoo Mail uses a paperclip icon as well. Once you click it, a window opens showing the folders on your computer — navigate to wherever your scanner saved the file and click it once to select it.

Most email services let you attach multiple files at once. If you scanned several pages as separate files, you can select them all together by holding Ctrl (on Windows) or Command (on Mac) while clicking each file name, then click "Open" or "Attach" to add them all to the same email.

Key Takeaways

  • After scanning, open your email and click the paperclip or "Attach" button to add the scanned file to a new message.
  • Navigate to the folder where your scanner saved the file, select it, and click "Open" to attach it to your email.
  • You can attach multiple scanned files to one email by holding Ctrl or Command while clicking each file name before opening them.
  • Large files may take longer to send and receive — if your scan is over 25 MB, consider compressing it or splitting it into smaller emails.
  • Once the file is attached, type your message and click "Send" just as you would for any other email.

Where your scanner saves files by default

Different scanners save files to different places on your computer. Most modern scanners that come with software will save to a folder called "Scans" or "My Scans" in your Documents folder. Some save directly to the Desktop. A few save to a folder named after the scanner brand — for example, "Canon" or "Epson".

If you are not sure where your file went, open your file manager (called "File Explorer" on Windows or "Finder" on Mac) and search for the file name. When you first scanned the document, the scanner software usually told you the file name — it might be something like "scan001.pdf" or "document.jpg". Type that name into the search box at the top of your file manager and your computer will find it. Once you find it, you can remember that location for next time, or you can drag the file to a folder you use more often.

File types and what they mean for email

Your scanner can save files in different formats. The most common are PDF, JPG, and PNG. PDF is usually the best choice for documents because it preserves the layout and text exactly as it appeared on the page, and most people can open PDF files without any special software. JPG and PNG are image formats — they work fine for email, but the file size is often larger, which means slower sending and receiving.

When you attach a file to an email, the recipient sees it as a separate item they can read and open. They do not need any special software to view a PDF — web browsers and email programs can open them. If your scanner saved the file as a JPG or PNG, that works too, but the file may be bigger. If you want to shrink the file size before sending, you can compress it using your computer's built-in tools (Windows has a "Send to" compress option; Mac has a "Compress" option in Finder) or use a free online tool.

Sending to multiple people at once

If you need to send the same scanned document to several people, you can type all their email addresses into the "To" field, separated by commas or semicolons depending on your email service. Gmail, Outlook, and Yahoo Mail all accept multiple addresses this way. As you type each address, your email program will usually suggest matches from your contacts — you can click the suggestion to add it quickly.

Alternatively, you can use the "Cc" field (which stands for "carbon copy") to send the same message to additional people who should see it but may not be the main recipient. The "Bcc" field (blind carbon copy) sends to people without showing their address to the other recipients — use this when you want to send to a group but keep their addresses private from each other.

If you send to a large group regularly, most email services let you create a contact group or mailing list. In Gmail, this is called a "Group" and you can create one in your Contacts. In Outlook, it is called a "Distribution List". Once you create the group, you can type the group name in the "To" field instead of typing each address individually.

File size limits and what to do if your scan is too large

Most email services have a limit on how large a single attachment can be. Gmail allows up to 25 MB per email. Outlook allows up to 20 MB. Yahoo Mail allows up to 25 MB. If your scanned file is larger than your email service's limit, the email will not send and you will see an error message.

If your file is too large, you have several options. The first is to compress the file before attaching it. On Windows, right-click the file, select "Send to," and then "Compressed (zipped) folder." On Mac, right-click the file and select "Compress." This usually reduces the file size by 30 to 50 percent. The recipient can unzip it on their end.

A second option is to split the document into smaller files. If you scanned a multi-page document as one large file, you can use a free PDF tool like ILovePDF or Smallpdf to split it into two or three smaller files, then attach each one to a separate email or send them all in one email if the total is under the limit.

A third option is to use a file-sharing service like Google Drive, Dropbox, or OneDrive. Instead of attaching the file, you upload it to the service, then send the recipient a link to read it. This works well for very large files and lets you control who can see the file and for how long.

Checking that the attachment actually sent

After you click "Send," most email services show a confirmation message saying the email was sent successfully. However, it is worth taking one extra step: open your "Sent" folder a few seconds later and click on the email you just sent to verify that the attachment is listed. If the attachment is there, it sent correctly. If it is missing, the email went out without the file and you will need to send it again.

On the recipient's end, they should see the attachment listed below the message text. If they do not see it, ask them to check their spam or junk folder — sometimes emails with attachments are filtered there by mistake. If it is not in junk either, the file may not have attached properly and you may need to resend it.

If you are sending a sensitive document, consider asking the recipient to reply and confirm they received it and could open it. This takes only a few seconds and prevents misunderstandings later.

Frequently Asked Questions

Can I scan directly to email without saving to my computer first?

Many modern scanners have this feature built in. Check your scanner's software or the buttons on the scanner itself for an option like "Email" or "Send to Email." If your scanner supports it, you can enter the recipient's email address and the scanner will send the file directly. This skips the step of saving to your computer, though you may still want to keep a copy for your own records.

What if the recipient says they cannot open the file?

Ask them what program they tried to open it with. If you sent a PDF and they do not have a PDF reader, they can read one free (Adobe Reader is the most common). If you sent a JPG or PNG and they still cannot open it, try resending as a PDF instead — your scanner software usually has an option to change the file type before scanning. If the file is corrupted, try scanning the document again.

Is it safe to email scanned documents?

Email is not encrypted by default, which means the message and attachment travel across the internet in a way that could theoretically be intercepted. For everyday documents like receipts or bills, this is usually not a concern. For sensitive documents like tax returns, medical records, or financial statements, consider asking the recipient if they have a find file-sharing service or encrypted email option. Many banks and healthcare providers have find portals for this reason.

How long does it take for the recipient to receive the email?

Most emails arrive within seconds to a few minutes. If the file is very large (over 10 MB), it may take a few minutes longer to send from your computer and a few minutes longer for the recipient's email service to read it. If the email does not arrive within an hour, check your Sent folder to confirm it actually sent, and ask the recipient to check their spam folder.

Can I password-protect a scanned document before sending it?

Yes, if the file is a PDF. You can use a free tool like ILovePDF or Smallpdf to add a password to the PDF before attaching it. The recipient will need to enter the password to open it. For extra security, send the password in a separate message or phone call rather than in the same email as the file.