The attachment field type will allow you to attach multiple files directly to your records, including mp3s, PDFs, photos, and word documents. The attachment field looks like this in the expanded record view:

Tapping the camera icon will enable you to take a picture with your phone camera and directly attach it to your record.

Here is the picture in question:

Tapping the painting icon will enable you to attach a photo from your phone's files.

Tapping the ellipsis icon will enable you to upload files from a variety of other sources, including from a web search or from your Dropbox or Google Drive account. 

PDF uploads aren't currently supported on the Android app.

The cell will show thumbnail previews of the files you've attached, which you can tap to open in an expanded preview or download directly to your phone.

From the bottom of the expanded preview, you can tap the download icon on the left to bring up a variety of sharing and downloading options, or you can tap the trashcan icon on the right to delete the attachment.

FAQ

Does the attachment field compress image files?

We don’t change or degrade the quality of attachments that you upload to Airtable. If you download an attachment from Airtable, you’ll get an exact copy of the file you originally uploaded. If you need to compress your images—we recommend using a third-party app and then uploading your newly compressed images into Airtable. 

Can I use HEIC formatted images?

Thumbnails and previews of HEIC files are not currently supported in Airtable. For now, you could set your iPhone to save photos as JPG files instead of HEIC to work around this limitation.