✨ Add Read PDF node docs

docs/nodes/nodes-library/core-nodes/ReadPDF/README.md

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+---
+permalink: /nodes/n8n-nodes-base.readPDF
+---
+
+# Read PDF
+
+The Read PDF node is used to read data from PDF documents and extract its content as text.
+
+::: tip 💡 Keep in mind
+1. You will need to use an additional node such as the [Read Binary File](../../core-nodes/ReadBinaryFile/README.md) node or the [HTTP Request](../../core-nodes/HTTPRequest/README.md) node to pass the image file as a data property to the Read PDF node.
+:::
+
+## Node Reference
+
+The Read PDF node has one property:
+
+1. *Binary Property* field: This is a text field used to specify the name of the data property used to read the PDF file in n8n.
+
+## Example Usage
+
+This workflow allows you to read a PDF file using the Read PDF node. You can also find the [workflow](https://n8n.io/workflows/585) on the website. This example usage workflow would use the following three nodes.
+- [Start](../../core-nodes/Start/README.md)
+- [Read Binary File](../../core-nodes/ReadBinaryFile/README.md)
+- [PDF Read]()
+
+
+The final workflow should look like the following image.
+
+![A workflow with the Read PDF node](./workflow.png)
+
+### 1. Start node
+
+The start node exists by default when you create a new workflow.
+
+### 2. Read Binary File
+1. Enter the path to the PDF file you want to read in the *File Path* field.
+
+### 3. Read PDF node
+
+1. Enter the *Property Name* you used in the previous node in the *Binary Property* field.
+2. Click on *Execute Node* to run the workflow.