Get a quick preview of a WhatsApp document
See what a document is before opening the full file, with a thumbnail generated on arrival.
Trigger
New Message Received
Triggered in real time when your WhatsApp Business number receives an inbound message from a customer (text, media, location, or contact). Delivered via the Cloud API webhook.
Action
LibreOffice Thumbnail
Tool to generate a thumbnail image of a document using libreoffice. use when you need a quick visual preview of a pdf or office file's first page.
Why this helps
Opening every attachment just to identify it creates unnecessary context switching.
- Generate a thumbnail of the document's first page.
- Preview supported PDFs and office files quickly.
- Use the incoming message as the starting point.
Setup
Build it in a few focused steps.
- 1Connect WhatsApp and Api2pdf once in the Notis portal.
- 2Create an automation with a name and a prompt to generate a first-page thumbnail for incoming document attachments.
- 3Pick the New Message Received trigger.
- 4Choose where run reports should go, then test with one real document attachment.
Questions about this workflow
Which page does the thumbnail show?
The action generates a quick visual preview of the first page.
Does it work with office documents?
The action supports PDFs and office files through LibreOffice. Confirm the specific file is supported with a real example.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Whatsapp to Api2pdf. A trigger fires from one place; an action lands in another.
Whatsapp triggers
Api2pdf actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add Header Footer
Tool to add headers and footers to a pdf document. use when you need consistent page numbering, titles, or custom branding on every page.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Delete PDF
Tool to delete a previously generated pdf. use when you need to immediately remove a pdf by its response id.
Message Status Updated
Triggers when a WhatsApp message status changes. IMPORTANT LIMITATION: WhatsApp Cloud API does not provide a native polling endpoint for message status. Status updates are ONLY delivered via webhooks in real-time. This trigger cannot directly poll the WhatsApp API for status updates. This trigger will return empty results as WhatsApp does not support this operation. To track message status updates, you must: 1. Set up a webhook endpoint to receive status notifications from WhatsApp 2. Store the webhook data in your own database 3. Use a different mechanism to query your stored webhook data For more information, see: - https://developers.facebook.com/docs/whatsapp/cloud-api/webhooks
Extract PDF Pages
Tool to extract specific pages from a pdf document. use when you need only certain pages from a larger pdf file.
New Message Received
Triggered in real time when your WhatsApp Business number receives an inbound message from a customer (text, media, location, or contact). Delivered via the Cloud API webhook.
LibreOffice PDF to HTML
Tool to convert a pdf document to html using libreoffice. use when you need html output of a pdf file (experimental; images may be excluded).
Interactive Reply Received
Triggered when a customer taps a quick-reply button or selects an option from an interactive list message you sent.
LibreOffice Thumbnail
Tool to generate a thumbnail image of a document using libreoffice. use when you need a quick visual preview of a pdf or office file's first page.
Message Template Status Update
Triggered when the review status of a WhatsApp message template changes — for example approved, rejected, or flagged — on your WhatsApp Business Account.
Merge PDFs
Tool to merge multiple pdf documents into a single pdf. use when you need to concatenate several pdfs on the server-side.
Optimize PDF
Tool to optimize a pdf document to reduce file size while maintaining quality. use when you need to minimize storage or bandwidth for an existing pdf.
Reorder PDF Pages
Tool to reorder pages of a pdf document. use when you need to rearrange pages into a new order by specifying page indices.
Connect any two apps with Notis in the middle.
Whatsapp and Api2pdf, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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No card. Works with personal or business Api2pdf.