Compress pitch deck images from Slack
Keep the deck moving by reducing image file sizes as soon as a public asset URL appears in the review thread.
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
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
Why this helps
Presentation polish can involve repeated asset handling that distracts from the story and final review.
- Prepare lighter assets during deck review.
- Reduce a repetitive manual step before sharing a presentation.
- Keep the optimization result close to reviewer context.
Setup
Build it in a few focused steps.
- 1Connect Slack and Kraken.io to Notis once.
- 2Create an automation in the portal or ask Notis in plain language.
- 3Use one instruction asking Notis to optimize public image URLs shared for pitch deck work and return the result.
- 4Pick the Slack channel message trigger and choose a channel for run reports.
- 5Test with one public image URL intended for the deck.
Questions about this workflow
Does it edit the presentation file?
No. It optimizes the image URL with Kraken.io and returns the result for the deck owner to use.
Will every link in deck chat be processed?
Describe the relevant image context in your prompt so Notis can identify URLs intended for deck assets.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Kraken io. A trigger fires from one place; an action lands in another.
Slack triggers
Kraken io actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Check Kraken.io User Status
Tool to retrieve current kraken.io account status and quota usage. use when you need to verify plan limits and remaining quota before processing images.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Preserve Image Metadata
Tool to preserve exif and other metadata during kraken.io image optimization. use when you need to maintain metadata while compressing images.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Sandbox Image Upload
Tool to upload and optimize images in sandbox mode. use when you want to test the kraken.io api without consuming credits.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Kraken io, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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