--- title: "Connect Slack to PDF Blocks - APIANT.ai" description: "When \"New Channel\" fires in Slack, your agent runs \"Extract Pages From PDF\" in PDF Blocks." canonical: "https://apiant.ai/connect/slack-to-pdf-blocks" --- # Connect Slack to PDF Blocks When **New Channel** fires in [Slack](https://apiant.ai/connections/slack), your agent runs **Extract Pages From PDF** in [PDF Blocks](https://apiant.ai/connections/pdf-blocks). Describe the whole flow and it is built, tested on every scenario and kept running. Slack **15** triggers Slack **60** actions PDF Blocks **17** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Slack and PDF Blocks to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Slack can start in PDF Blocks - When **New Channel** in Slack then **Extract Pages From PDF** in PDF Blocks - When **New Channel Member** in Slack then **Merge PDF Documents** in PDF Blocks Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Slack and PDF Blocks ## Triggers and actions 15 triggers · 77 actions - Trigger **New Channel** Triggers when a new channel is created in the workspace. - Trigger **New Channel (instant)** Triggers when a new channel is created (Slack event channel_created). - Trigger **New Channel Member** Triggers when a member joins a chosen channel (Slack event member_joined_channel). - Trigger **New File (instant)** Triggers when a new file is uploaded to the workspace (Slack event file_created). - Trigger **New Mention (instant)** Triggers when a username or keyword is mentioned in a channel. Events API message events with keyword filter. - Trigger **New Message Posted to Channel** Triggers when a message is posted to a chosen channel (Slack event message.channels). - Trigger **New Message Posted to Private Channel** Triggers when a message is posted to a chosen private channel or group DM (Slack events message.groups, message.mpim). - Trigger **New Pinned Item** Triggers when an item is pinned in a channel. - Trigger **New Public Message Posted Anywhere** Triggers when a message is posted to any public channel (Slack event message.channels). - Trigger **New Reaction Added** Triggers when an emoji reaction is added to a message (Slack event reaction_added). - Trigger **New Saved Message** Triggers when a message or file is saved (starred) (Slack event star_added). - Trigger **New Team Custom Emoji** Triggers when a custom emoji is added to the workspace (Slack event emoji_changed). - Trigger **New Thread Reply** Triggers when a new reply is added to a message thread. - Trigger **New User** Triggers when a new user joins the workspace. Polling; deduped by user id. - Trigger **New User (instant)** Triggers when a new user joins the workspace (Slack event team_join). - Action **Add Bookmark** Add a bookmark to a channel. - Action **Add Reaction** Add an emoji reaction to a message. - Action **Add Star** Save a message or file by starring it. - Action **Archive Channel** Archive a channel. - Action **Complete Reminder** Mark a reminder as complete. - Action **Create Canvas** Create a standalone canvas document. - Action **Create Channel** Create a new public or private channel. - Action **Create Channel Canvas** Create a canvas attached to a channel. - Action **Create Reminder** Create a reminder for a user at a specified time. - Action **Delete Canvas** Delete a canvas. - Action **Delete File** Delete a file from the workspace. - Action **Delete Message** Delete a message from a channel by timestamp. - Action **Delete Reminder** Delete a reminder. - Action **Delete Scheduled Message** Cancel a scheduled message before it is sent. - Action **Edit Bookmark** Edit an existing channel bookmark. - Action **Edit Canvas** Edit the content of a canvas. - Action **Find Channel by Name** List channels filtered to locate a channel by name (client filters the returned list). - Action **Find User by Email** Look up a Slack user by their email address. - Action **Get Channel Messages** Fetch the message history of a channel. - Action **Get File Info** Get information about a file. - Action **Get Message Permalink** Get a permanent link to a specific message. - Action **Get Message Reactions** Get the emoji reactions on a message. - Action **Get Team Info** Get information about the workspace. - Action **Get Thread Replies** Get the replies in a message thread. - Action **Get User Info** Get profile information for a Slack user by ID. - Action **Get User Presence** Get a user's current presence status. - Action **Get User Profile** Get a user's profile fields. - Action **Invite User to Channel** Invite one or more users to a channel (comma-separated user IDs). - Action **Join Channel** Join a public channel. - Action **Leave Channel** Leave a channel. - Action **List Bookmarks** List the bookmarks in a channel. - Action **List Channel Members** List the members of a channel. - Action **List Channels** List channels in the workspace (public and private). - Action **List Custom Emojis** List the workspace's custom emojis. - Action **List Files** List files in the workspace, optionally filtered by channel or user. - Action **List Pinned Items** List the items pinned in a channel. - Action **List Scheduled Messages** List messages scheduled to be sent later. - Action **List User Groups** List the workspace's user groups. - Action **List Users** List all users in the workspace. - Action **List User's Channels** List the channels a user is a member of. - Action **Mark Channel Read** Set the read cursor position in a channel. - Action **Pin Message** Pin a message to a channel. - Action **Remove Bookmark** Remove a bookmark from a channel. - Action **Remove Reaction** Remove an emoji reaction from a message. - Action **Remove Star** Remove a star from a message or file. - Action **Remove User from Channel** Remove a member from a channel. - Action **Rename Channel** Rename a channel. - Action **Schedule Message** Schedule a message to be sent to a channel at a future Unix time. - Action **Search Files** Search files across the workspace. - Action **Search Messages** Search messages across the workspace. - Action **Send Direct Message** Open a DM with a user and post a message to it. - Action **Send Ephemeral Message** Send a message in a channel that is visible only to one user. - Action **Send Message** Post a message to a channel, private group, or DM. - Action **Set Channel Purpose** Set the purpose (description) for a channel. - Action **Set Channel Topic** Set the topic for a channel. - Action **Set User Presence** Set the authenticated user's presence status. - Action **Unarchive Channel** Restore an archived channel. - Action **Unpin Message** Remove a pinned message from a channel. - Action **Update Message** Update an existing message in a channel by timestamp. - Action **Upload File** Upload a file and share it to one or more channels. - Action **Add Image Watermark to PDF** Add an image watermark to each page of a PDF document. - Action **Add Password to PDF** Protect a PDF document with a password. Encrypt the PDF document to prevent unauthorized access. - Action **Add restrictions to PDF** Add permission restrictions to a PDF. - Action **Add Text Watermark to PDF** Add a text watermark to each page of a PDF document. Choose from several watermark templates. - Action **Extract Pages From PDF** Extract one or more pages from a PDF document. - Action **Merge PDF Documents** Combine multiple PDF documents into a single PDF document. - Action **Remove pages from PDF** Remove selected pages from a PDF. - Action **Remove password from PDF** Decrypt a PDF with a known password. - Action **Remove restrictions from PDF** Remove permission restrictions from a PDF. - Action **Remove signatures from PDF** Remove digital signatures from a PDF. - Action **Reorder pages in PDF** Reorder pages into a specified sequence. - Action **Reverse pages in PDF** Reverse page order. - Action **Rotate pages in PDF** Rotate selected pages. - Action **Split PDF at page** Break a PDF at a chosen page boundary. - Action **Split PDF by file size** Cap each part's byte size when splitting. - Action **Split PDF by page count** Break a PDF into fixed-size chunks. - Action **Split PDF into page groups** Group pages by a defined pattern into separate PDFs. ## Each app on its own - [ **Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connections/slack) - [ **PDF Blocks** PDF actions for your zaps: Merge PDF documents, protect PDFs with a password, watermark PDF documents, and...](https://apiant.ai/connections/pdf-blocks) Reviews ## What our customers say ## More from Slack - [ **Slack to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/slack-to-hubspot) - [ **Slack to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/slack-to-google-sheets) - [ **Slack to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/slack-to-gmail) - [ **Slack to Google Drive** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/slack-to-google-drive) - [ **Slack to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/slack-to-quickbooks-online) - [ **Slack to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/slack-to-pipedrive) ## More into PDF Blocks - [ **HubSpot to PDF Blocks** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-pdf-blocks) - [ **Salesforce to PDF Blocks** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-pdf-blocks) - [ **Google Sheets to PDF Blocks** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-pdf-blocks) - [ **Gmail to PDF Blocks** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-pdf-blocks) - [ **Google Calendar to PDF Blocks** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-pdf-blocks) - [ **Google Drive to PDF Blocks** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-pdf-blocks) Questions ## Slack and PDF Blocks, answered ### ### What can start an automation from Slack? Any of Slack's 15 triggers in the catalog, including New Channel, New Channel (instant), New Channel Member and New File (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PDF Blocks when something happens in Slack? Any of PDF Blocks's 17 actions, including Add Image Watermark to PDF, Add Password to PDF, Add restrictions to PDF and Add Text Watermark to PDF. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from PDF Blocks to Slack? PDF Blocks has no triggers in the catalog today, so automations start in Slack. If you need the other direction, ask: your agent reads PDF Blocks's API documentation and adds it. ### ### Do I have to build a connector for Slack or PDF Blocks? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Slack and PDF Blocks without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.