> For the complete documentation index, see [llms.txt](https://docs.3dolphins.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.3dolphins.ai/customer-service/dashboard/send-file-or-attachment/send-library.md).

# Send Library

Agents can send a library like cards, options, images, documents, videos, and audio. A common data type that is used for sending library is:

| Digital Library Management | Type File                                | Max. Size     |
| -------------------------- | ---------------------------------------- | ------------- |
| Card                       | ‘gif’, ‘jpg’, and ‘png’.                 | 2Mb (Default) |
| Option                     | –                                        | 2Mb (Default) |
| Image                      | ‘gif’, ‘jpg’, and ‘png’.                 | 2Mb (Default) |
| Document                   | ‘doc’, ‘docx’, ‘pdf’, ‘xls’, and ‘xlsx’. | 2Mb (Default) |
| Video                      | ‘mp4’ and ‘m4v’.                         | 2Mb (Default) |
| Audio                      | ‘mp3’ and ‘wav’.                         | 2Mb (Default) |

Sometimes, you might need to send promotions or other information product use assets in the digital library. Digital Library is a module containing knowledge that can make your Bot conversations more varied than standard text messages, and for more information about library please refer to [Digital Library](/bot-settings/digital-library.md) Page. In conversation chat, click the *attachment* button and select the **'Send Attachment'** button (<img src="/files/-MOVboka4XspKeYvju65" alt="" data-size="line">). Then, you will see a pop-up to find or add a digital library.

![Send Library](/files/N4LLmPOkueiYI9zD2HYo)

For example, attach digital library with type digital library is ‘card‘. If the digital library has been sent successfully, you will see a digital library in the conversation chat, as shown below.

| Agent page                                                          | Customer page                                                       |
| ------------------------------------------------------------------- | ------------------------------------------------------------------- |
| <img src="/files/uQcgq6nefEH0Fs1xY9bS" alt="" data-size="original"> | <img src="/files/SeQq9m6EiyMIagN3uG6F" alt="" data-size="original"> |


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