The basic steps: attach, address, send

Emailing a PDF is the same as emailing any other file. Open your email program or website, start a new message, click the attachment button (usually a paperclip icon), find the PDF on your computer or phone, select it, and send. The PDF arrives in the recipient's inbox as a file they can open, download, or save.

The process takes about two minutes once you know where the attachment button is. Different email services put it in slightly different places, but the concept is identical across Gmail, Outlook, Yahoo Mail, Apple Mail, and most others.

Key Takeaways

  • The attachment button is usually a paperclip icon near the message compose area, or sometimes a plus sign or "Add files" text.
  • You can attach a PDF from your Downloads folder, Documents folder, or any other location where you have saved it.
  • Most email services allow attachments up to 25 MB, which covers most PDFs; larger files may need cloud storage instead.
  • The recipient receives the PDF as a separate file and can open it immediately or save it to their own computer.
  • If you cannot find the attachment button, check the email service's help section or look for a plus sign, paperclip, or "Insert" menu.

Finding the attachment button in Gmail

In Gmail on a computer, open a new message by clicking "Compose" in the top left. In the message box that appears, look for a paperclip icon at the bottom left of the compose window. Click it, and a file browser opens. Navigate to where your PDF is saved, select it, and click "Open."

On the Gmail mobile app, tap the compose button (pencil icon), write your message, then tap the paperclip icon at the bottom. Select "Attach file," choose your PDF from your phone's storage, and send as usual. The process is the same whether you are using an iPhone or Android phone.

Attaching a PDF in Outlook and Outlook.com

In Outlook on a Windows computer, click "New Email" to start a message. In the ribbon at the top, click "Attach File" (or sometimes just "Attach"). A file browser opens. Find your PDF and click "Insert." The file name appears in the message, and you can send it immediately.

In Outlook.com (the web version), click "Compose" to start a new message. Look for a paperclip icon or a plus sign near the bottom of the compose area. Click it, select your PDF, and it attaches to the message. You can also drag and drop a PDF directly into the compose window if your browser supports it.

Attaching a PDF on Mac and iPhone

In Apple Mail on a Mac, start a new message and click "File" in the menu bar, then "Attach Files." A file browser opens. Navigate to your PDF and click "Select." Alternatively, you can drag a PDF directly from Finder into the message body, and it attaches automatically.

On an iPhone, open the Mail app and tap the compose button. Tap the plus sign or attachment icon (usually at the bottom of the keyboard), select "Add Attachment," and choose your PDF from Files or Photos. Some PDFs may appear in Photos if you have saved them there.

What to do if your PDF is too large

Most email services limit attachments to 25 MB. A typical PDF document—a contract, invoice, or report—is well under this limit. However, PDFs with many high-resolution images or scanned documents can exceed it.

If your PDF is too large, use a cloud storage service instead. Upload the PDF to Google Drive, Dropbox, OneDrive, or iCloud Drive, then share a link to it in your email. The recipient clicks the link and can view or download the file without it being attached. This method also works when you need to send the same file to many people, since you can update the file once and everyone sees the latest version.

Making sure the recipient can open the PDF

PDFs open on nearly every device—computers, phones, tablets—without any special software. The recipient does not need to own Adobe Acrobat or any paid program. Their device's built-in PDF reader (Preview on Mac, Edge or Chrome on Windows, the Files app on iPhone) opens it automatically.

If the PDF contains forms that need to be filled out, the recipient can usually type directly into the form fields and save their answers. If they cannot, they can print the PDF and fill it by hand, or ask you to send an editable version (like a Word document) instead.

Troubleshooting: attachment button not visible

If you cannot find the attachment button, check whether you are in the right place. Some email services hide the compose window until you click "Compose" or "New Message." Once the message box is fully open, look for a paperclip, plus sign, or text that says "Attach," "Add files," or "Insert."

If you are using a web-based email service and nothing appears, try refreshing the page or switching to a different web browser. Some older browsers do not display all the buttons. If you are on a phone and the button is still missing, try the desktop version of the website instead, or use the official email app for your provider (Gmail app, Outlook app, Yahoo Mail app).

Frequently Asked Questions

Can I attach multiple PDFs in one email?

Yes. Click the attachment button once for each file you want to send, or select multiple files at once if your file browser allows it. Most email services let you attach up to 25 MB total, so you can usually send several PDFs in a single message unless they are very large.

What happens if I attach a PDF but forget to send the email?

Most email services save your draft automatically. The attachment stays in the draft until you delete it or send the message. If you close the email without sending, open your Drafts folder later and the message with the attachment will still be there.

Can the recipient edit the PDF I send them?

They can fill in form fields if the PDF has them, but they cannot edit the text or images the way they could in a Word document. If you need them to make changes to the content, send a Word or Google Docs version instead. If you only want them to view it, a PDF is better because the formatting stays exactly as you created it.

Is it safe to email a PDF with personal information?

Email is not encrypted by default, so someone could theoretically intercept it. If the PDF contains sensitive information like a Social Security number or bank account details, consider using a password-protected PDF or a secure file-sharing service instead. Most email providers offer optional encryption, or you can password-protect the PDF before sending it.

Why does my PDF look different when the recipient opens it?

PDFs usually look the same on any device, but very old email clients or phones may display them slightly differently. If the recipient reports that fonts look wrong or pages are cut off, ask them to try opening the PDF in a different app or on a different device. You can also try converting the PDF to a different format, though this is rarely necessary.