The fastest way to attach a file on iPhone

Open the Mail app, start a new email or reply to one, then tap the attachment icon — it looks like a paperclip — near the bottom of the compose window. You'll see options to take a photo, scan a document, or browse files you already have. Choose the file you want, and it attaches to your email. That's the complete process.

The paperclip icon appears in the toolbar below where you type your message. If you don't see it when ready, make sure you've tapped in the message body first — the toolbar only shows up when you're actively composing. On some iPhones, you may need to tap the arrow icon on the right side of the toolbar to reveal more options, including the attachment button.

Key Takeaways

  • The paperclip icon in Mail's compose window is your attachment button — tap it to add files from your phone or take new photos and documents.
  • You can attach photos, videos, PDFs, documents, and most other file types, but very large files may need to be compressed or sent through a cloud service instead.
  • Files from the Files app, Photos app, and iCloud Drive all attach the same way — through the paperclip menu.
  • If the paperclip icon doesn't appear, make sure you've tapped in the message body and wait a moment for the toolbar to load.

Attaching photos and videos from your camera roll

Tap the paperclip icon and select "Photo or Video" from the menu that appears. Your Photos app opens showing your camera roll. Scroll to find the photo or video you want to send, tap it once to select it, then tap "Choose" in the bottom right corner. The file attaches to your email when ready, and you can see a thumbnail of it in the compose window.

You can attach multiple photos at once by tapping each one you want — they'll show a checkmark when selected. After you've picked all the photos you need, tap "Choose" once and they all attach together. Keep in mind that videos take up much more space than photos, so if you're sending a long video, the recipient's email provider might reject it if it's too large.

Attaching files from the Files app or iCloud Drive

Tap the paperclip icon and choose "Browse" or "Files" from the menu. This opens your Files app, where you can navigate to any folder on your iPhone, iCloud Drive, or other cloud services you've connected. Find the file you want to send, tap it, then tap "Add" or "Choose" depending on which version of iOS you're using.

The Files app shows everything stored on your phone — documents, spreadsheets, PDFs, and other file types. If you've saved files to iCloud Drive, Google Drive, Dropbox, or OneDrive, you can access those folders directly from the Files app without downloading them first. This is especially useful if you want to send a file without taking up storage space on your phone.

Scanning and attaching documents directly

Tap the paperclip icon and select "Scan Documents" from the menu. Your iPhone's camera opens in document-scanning mode, which automatically detects the edges of the page and adjusts the angle. Position your document under good lighting, and your phone takes a photo. You can scan multiple pages by tapping the plus icon after each page, then tap "Save" when you're done.

The scanned document becomes a PDF file that attaches to your email. This is faster than taking a regular photo because the scan mode crops out the background and adjusts contrast to make text readable. If you need to scan something but don't have the original file, this is the quickest way to create an attachment without leaving the Mail app.

Understanding file size limits and what happens when files are too large

Most email providers allow attachments up to 20 to 25 megabytes per email. Photos from your iPhone camera are usually 2 to 5 megabytes each, so you can typically send several without hitting the limit. Videos are much larger — a one-minute video can be 50 to 100 megabytes — and will likely be rejected if you try to send it directly through email.

If a file is too large, Mail will warn you before you send. At that point, you have two options: compress the file by reducing its quality, or use a cloud service like iCloud Drive, Google Drive, or Dropbox to share it instead. Many people find it easier to upload a large file to a cloud service and send a link in the email rather than trying to attach the file itself.

Attaching files from third-party apps

Some apps like Microsoft Word, Google Docs, or Adobe Reader let you share files directly to Mail without using the paperclip icon. Open the file in the app, look for a "Share" button (usually three dots or lines), then select "Mail" from the menu. The file opens in a new email ready to send, and you just need to add the recipient's address.

This method is convenient if you're already working in another app and want to send the file without switching back and forth. The file still attaches the same way — it just takes a different path to get there. Not every app supports this, so if you don't see a Mail option in the Share menu, use the paperclip method instead.

Troubleshooting when attachments won't work

If the paperclip icon doesn't appear, first make sure you've tapped in the message body where you type your email. The toolbar only shows up when you're actively composing. If it still doesn't appear, try closing Mail completely and reopening it. Sometimes the app needs a moment to load all its features.

If a file won't attach or you get an error message, the file might be corrupted, too large, or in a format Mail doesn't recognize. Try attaching a different file to see if the problem is with that specific file or with Mail itself. If Mail keeps crashing when you try to attach files, restart your iPhone — this fixes most temporary glitches. If the problem continues, check that you have enough free storage space on your phone, because Mail needs space to process attachments.

Frequently Asked Questions

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

Not directly — you can only attach files that are already on your iPhone or accessible through apps on your phone. If you need to send a file from your computer, upload it to iCloud Drive, Google Drive, or Dropbox first, then access it from your iPhone and attach it through Mail. Alternatively, email the file to yourself from your computer, then forward it from your iPhone.

What file types can I attach to email on iPhone?

Mail supports most common file types including photos (JPEG, PNG), videos (MP4, MOV), documents (PDF, Word, Excel), and text files. Some less common formats may not work. If you're unsure whether a file will attach, try it — Mail will show an error if the format isn't supported, and you can convert the file using another app.

Why does my attachment look blurry or low quality after I send it?

Mail sometimes compresses images automatically to reduce file size, especially if you're sending multiple photos. The recipient sees the compressed version. If you need to send high-quality images, use a cloud service to share them instead, or ask the recipient if they can receive larger files before you send.

Can I attach files to emails I'm replying to?

Yes — the paperclip icon works the same way in reply emails as it does in new emails. Tap it, choose your file, and it attaches to your reply. This is useful if someone asks you to send them a document in response to their message.

What should I do if someone can't open my attachment?

Ask them what app they use to open that file type — they may not have the right software installed. If they use a different device or operating system, the file format might not be compatible. Try converting the file to a more universal format (like PDF for documents) or using a cloud service where they can read it directly.