The fastest way to attach a file on iPhone

Open the Mail app, start a new email or reply to an existing one, then tap the arrow icon at the bottom left of the compose window. This opens a menu with attachment options. Tap Add Attachment, then choose where your file lives — Photos, Files, iCloud Drive, or another cloud service you have installed. Select the file and it attaches to your email. The whole process takes about 10 seconds once you know where to look.

The arrow icon is easy to miss because it blends into the toolbar. It sits to the left of the formatting buttons (bold, italic, underline). If you do not see it, make sure you are in the compose window — the screen where you type your message — not the inbox or a sent email.

Not all file types work equally well. Photos and PDFs attach without trouble. Large video files may compress automatically or fail to send depending on your carrier and the recipient's email provider. Documents created in Apple's apps (Pages, Numbers, Keynote) attach reliably. Microsoft Office files (Word, Excel, PowerPoint) also work fine.

Key Takeaways

  • Tap the arrow icon at the bottom left of the compose window to reveal the attachment menu.
  • You can attach files from Photos, the Files app, iCloud Drive, Google Drive, Dropbox, or other cloud services you have installed.
  • Photos and PDFs attach without issues; large video files may not send depending on your email provider and network.
  • If the arrow icon does not appear, swipe up on the keyboard or tap in the message body first to make sure the compose toolbar is fully visible.

Attaching photos and videos from your camera roll

Tap the arrow icon, then tap Add Attachment. Choose Photos. Your photo library opens. Tap the album you want — usually Recents or Camera Roll — then tap each photo or video you want to attach. A blue checkmark appears on selected items. Tap Insert at the bottom right when you are done selecting.

You can attach multiple photos at once this way. iPhone will compress them slightly to keep the email size reasonable, but the quality stays good enough for sharing with family or colleagues. If you need the original uncompressed versions, use iCloud Drive or another cloud service instead — attach a link rather than the files themselves.

Video files are larger and may not send if your email provider has size limits. Gmail allows up to 25 MB per email. Outlook and Yahoo Mail have similar limits. If your video is too large, consider uploading it to Google Drive or iCloud Drive and sending a link instead.

Attaching files from the Files app or iCloud Drive

Tap the arrow icon, then tap Add Attachment. Choose Files or iCloud Drive. Navigate to the folder containing your file — you may need to tap through several folders to find it. Tap the file once to select it, then tap Insert.

This method works for documents, spreadsheets, presentations, PDFs, and any other file type stored on your phone or in iCloud. If you store files in a folder structure, remember where you put them. The Files app shows your iPhone storage, iCloud Drive, and any other cloud services you have connected (Google Drive, Dropbox, OneDrive).

If a file does not appear in the Files app, it may be stored in a specific app's folder rather than in general storage. For example, a document created in Pages lives in the Pages app folder. Open that app, find the document, tap the three-dot menu, and look for a Share or Send option that lets you email it directly.

Attaching files from Google Drive, Dropbox, and other cloud services

If you use Google Drive, Dropbox, OneDrive, or another cloud service, you can attach files directly from those apps. Tap the arrow icon, then tap Add Attachment. Scroll down to see all available services — you may need to tap More to see the full list. Choose the service where your file is stored, navigate to the file, and tap it to insert.

This is useful if your file lives in a shared folder or if you want to send a version that stays synced with the original. For example, if you attach a Google Sheets file, the recipient can open it and see any updates you make later — they are not getting a static copy.

Make sure you have each cloud service's app installed on your iPhone. If you use Google Drive but do not have the app, install it from the App Store first. Then the option will appear in the attachment menu.

What to do if the arrow icon does not appear

The arrow icon sometimes hides if the keyboard is covering the toolbar. Swipe up on the keyboard to collapse it, or tap somewhere in the message body to make sure you are in compose mode. The toolbar should then become visible at the bottom of the screen.

If the arrow still does not appear, close the email and start over. Tap New Message or Reply, wait a moment for the compose window to fully load, then look for the arrow icon again. On older iPhone models or with a full keyboard, the icon may shift position slightly, but it is always to the left of the bold, italic, and underline buttons.

If you are using a third-party email app instead of Apple Mail — Gmail app, Outlook app, or another — the attachment process is different. Look for a paperclip icon or a plus sign in the compose window. The location varies by app.

Attachment size limits and what happens if a file is too large

Most email providers limit attachments to 20 to 25 MB per email. iPhone shows you the total size of all attachments you have added. If you exceed the limit, you will see a warning before you send. The email will not go through until you remove some files or use a smaller version.

For files larger than the limit, use a cloud service instead. Upload the file to Google Drive, iCloud Drive, or Dropbox, then copy the sharing link and paste it into your email. The recipient can download the file from the link. This also works better for files you want people to collaborate on — they can edit a shared document without emailing versions back and forth.

Photos and videos compress automatically when you attach them through the Photos app, so they usually stay under the size limit. If you attach the same files through the Files app, they may be larger because they are not compressed. Choose the Photos app for camera roll items and the Files app only when you need the original uncompressed version.

Frequently Asked Questions

Can I attach multiple files at once?

Yes. When you tap Add Attachment and choose a source, you can select multiple files before tapping Insert. A blue checkmark appears on each selected file. This works for photos, videos, documents, and files from cloud services.

What if I want to attach a file that is not in Photos or Files?

Open the app where the file lives — Pages, Numbers, a note-taking app, or another program. Find the file, tap the three-dot menu or share icon, and look for Share via Mail or Send Email. This opens a new email with the file already attached. You can then add a recipient and message.

Why is my attachment not showing up in the email?

Make sure you tapped Insert after selecting the file, not just Cancel. The file should appear as a thumbnail or filename in the compose window. If it does not, try attaching it again. If the problem continues, restart the Mail app and try once more.

Can I attach files from my computer to an iPhone email?

Not directly. You need to move the file to your iPhone first — upload it to iCloud Drive, Google Drive, or Dropbox on your computer, then access it from that service on your iPhone. Then attach it through the Files app or the cloud service's app.

What happens if I attach a file and then edit it?

The email contains the version of the file at the moment you attached it. If you edit the file after attaching it, the email still has the old version. If you are attaching a file from a cloud service and the recipient has access to that service, they can see updates you make later — but the email itself does not change.