# Attachments
UpNote Premium allows you to insert files of any type into your notes, including PDFs, Word documents, text files, videos, and more (PDF, DOC, DOCX, TXT, MP4, etc.).
**UpNote limits each file upload to less than 20MB.**
***
### How to insert attachments
#### On Desktop (Mac, Windows, Linux)
1. Open your note.
2. Click the **Insert** button in the formatting bar at the bottom of the editor.
3. Select **Insert File**.
* Or use the shortcut **Cmd + O** (Mac) / **Ctrl + O** (Windows & Linux).
4. Choose the file you want to attach from Finder/Explorer.
Your file will appear in the note as an attachment and will sync across your devices.
#### On Mobile (iOS & Android)
1. Open your note.
2. Tap the **Insert** (＋) button in the formatting bar.
3. Select **Attachments**.
4. Choose the file you want to insert.
***
### How to Edit an Attachment
#### **On Desktop**
1. Click the attachment inside your note.
2. It will open in your system’s default viewer or editor (e.g., Preview, Word, Acrobat).
3. Make your edits.
4. Save the document (**Cmd + S** on Mac / **Ctrl + S** on Windows or Linux).
5. Return to UpNote — your changes will be detected and synced.
#### **On Mobile**
1. Tap the attachment to open it in your device’s viewer or editor.
2. Make your edits using the in-built app tools.
3. Tap **Done** (or your app’s save option).
4. Return to UpNote — the updated file will sync automatically.
***
### Tips
* If you need to store large files, we recommend uploading them to a cloud service such as Google Drive or Dropbox and inserting the link into UpNote. On desktop, you can also [link to local files](/write-and-edit/add-content-to-your-notes/link-to-internal-files-and-folders.md) stored on your device if you prefer not to upload them.
* When inserting a PDF on desktop, you can view it [inline](/write-and-edit/add-content-to-your-notes/preview-pdf-files.md) within the editor for quick reading.
***
### FAQs
Why is each file capped at 20MB?
To keep syncing fast and to manage server costs efficiently, each attachment is limited to **20 MB**. This helps us maintain an affordable Premium plan while continuing to support unlimited attachments. We will continue evaluating whether this limit can be increased in the future.
Is there a limit on the total number of attachments?
There is currently no limit on the number of attachments you can add across your notes.\
However, we will continue monitoring server usage and may adjust limits if necessary.
Can I view attachments offline?
Attachments are downloaded on demand to save storage and bandwidth (especially on mobile).
* If you have opened the attachment before, it remains available offline.
* If you have never opened the attachment, you will need an internet connection to download it the first time.
**Download all attachments for offline use (Desktop only)**
If you want full offline access to your attachments:
1. Go to **Settings → Backup**.
2. Enable **Backup attachments**.
3. Click **Backup now**.
This downloads all attachments to your device as part of your backup data.
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