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Give shared PDFs a consistent finish

Repeated reports and handouts can arrive with different formatting. Add a standard header or footer when a PDF is shared in Slack.

Trigger

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

Action

Add PDF Header Footer

Tool to add HTML header and footer to a PDF. Use when you need to embed consistent headers or footers across pages with margin and range options.

Why this helps

Adding the same presentation details to each recurring PDF takes time and creates inconsistent copies.

  • Apply consistent presentation details to shared PDFs.
  • Reduce repetitive document cleanup.
  • Make recurring reports easier to recognize.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Encodian to Notis once in the portal.
  • 2Create an automation and describe the header or footer you want in one plain-language prompt.
  • 3Pick the Slack Channel Message Received trigger and select a reporting channel for runs.
  • 4Test with a sample recurring PDF shared in Slack.

Questions about this workflow

Can it add both a header and footer?

Encodian supports adding HTML header and footer content to a PDF; specify the intended content in the prompt.

Can it cover selected pages?

The Encodian action includes margin and page range options, subject to what the prompt and integration support.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Encodian. A trigger fires from one place; an action lands in another.

Slack triggers

Encodian actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Decode Base64 String

Tool to decode a Base64 string to a file. Use when you need to extract binary content (e.g., PDF, image) from Base64 data.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Base64 Encode

Tool to encode a string to Base64. Use when you need to convert text into Base64 representation for use in other operations.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Compare Text

Tool to compare two text strings and determine if they match. Use when you have two strings and need to verify if they are equal.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Hash Data

Tool to compute a cryptographic hash (MD5, SHA256, etc.) of text or file data. Use when you need to verify integrity or generate digests.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Unzip File

Tool to extract files from an archive. Use when you need to unzip a package and retrieve its contents.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Get File Properties

Tool to retrieve properties of a file. Attempts multiple Encodian Filer endpoints and fallbacks.

ActionInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Resize Image

Tool to resize an image by percentage or dimensions. Use when you need to scale or reshape an image with optional aspect-ratio enforcement.

ActionInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Move File

Tool to move a file between containers. Use when you need to relocate a blob within your storage without manually copying then deleting.

ActionInstant

Connect any two apps with Notis in the middle.

Slack and Encodian, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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