Add documentation for all PDF tools

docs/tools/ods-to-pdf.md

@@ -0,0 +1,44 @@
+---
+title: ODS to PDF
+description: Convert LibreOffice Calc (ODS) spreadsheets to PDF in your browser. Free, private, no signup.
+---
+
+# ODS to PDF
+
+Convert OpenDocument Spreadsheet files into PDF. ODS is the native format for LibreOffice Calc and a common export from Google Sheets. This tool renders your spreadsheet data, formatting, and charts into a paginated PDF you can print or share.
+
+## Supported Formats
+
+| Format                   | Extension | Notes                                   |
+| :----------------------- | :-------- | :-------------------------------------- |
+| OpenDocument Spreadsheet | `.ods`    | LibreOffice Calc / Google Sheets export |
+
+## How It Works
+
+1. Click the upload area or drag and drop your ODS files. Multiple files are supported.
+2. Review the file list. Use the trash icon to remove files, or click **Add More Files** to expand the batch.
+3. Click **Convert to PDF**. The LibreOffice-based engine loads in the browser and renders each spreadsheet into PDF pages.
+4. A single spreadsheet downloads as a PDF. Multiple files are packaged into `ods-to-pdf.zip`.
+
+## Options
+
+No configuration is required. The converter applies the spreadsheet's existing print layout, cell formatting, and column widths to the PDF output.
+
+## Use Cases
+
+- Sharing a LibreOffice Calc budget or report with someone who only accepts PDFs
+- Printing a Google Sheets export that was downloaded as ODS
+- Archiving financial records in a non-editable format
+- Submitting ODS-based forms or timesheets as fixed-layout documents
+
+## Tips
+
+- If your spreadsheet has multiple sheets, all sheets are included in the PDF output.
+- Very wide spreadsheets may span multiple PDF pages horizontally. Consider adjusting column widths in the source file before converting if the layout matters.
+- The LibreOffice engine initializes on first use. Subsequent conversions in the same session are faster.
+
+## Related Tools
+
+- [ODG to PDF](./odg-to-pdf)
+- [ODP to PDF](./odp-to-pdf)
+- [XML to PDF](./xml-to-pdf)