Create PDF from Images for free via Google Slides and Google Drive

## 📚 Create a PDF from Google Drive Images

This workflow takes all images from a Google Drive folder you specify, sorts them by creation date, and compiles them into a single PDF using a Google Slides template.

**Key Things to Know Before You Start:**

  **Set Your File Name:**
- Go to the **'Set Pdf File Name'** node 
- Update the `presentation_title` value with your desired PDF name.

🔑 **Connect Google Accounts:**
- Authenticate your Google Drive & Google Slides accounts in all relevant Google nodes and HTTP nodes.

📏 **Use a Google Slides Template for Custom Page Size:**
- Google Slides defaults to a 16:9 aspect ratio. If you need specific PDF dimensions (e.g., A4, US Letter, square), **first create a Google Slides file with your desired page size.**
- Then, select this custom Google Slides file in the **'CopyPdfTemplate'** node (under 'File').

🖼️ **Image & Folder Setup:**
- In the **'CopyPdfTemplate'** node, also select the Google Drive **Folder** where your source images are located. The copied presentation and final PDF will also be created here.
- The workflow filters for `.png` images by default. To use other types (like JPG), update the **'Filter: Only Images'** node.

⚠️ **Image Size & Workflow Limits:**
- Google Slides may have limitations on individual image size and the overall PDF file size when exporting.
- This workflow works well for smaller presentations (10–20 pages). Larger files may run into errors or performance issues during export.

💰 **Cost:** Free to use (relies on standard Google API calls, which are generally within free tier limits for typical usage).