Just use the micro-attachment applet.

There are roughly two steps:

Step 1: Upload the attachment to the "micro-attachment" applet or the official website. Here, only those uploaded to official website will be demonstrated.

step 2: just operate in the background of wechat WeChat official account.

1. Go to the official website, upload the attachment, pay attention to the path, and use it later.

2. enter the editing area of wechat WeChat official account background material, click "applet", search for "micro attachment" and click "next".

through the "micro-attachment" applet, you can download attachments for WeChat official account articles, customize the menu to download attachments, and automatically reply to download attachments.