# IyzPdf Client API > Client-facing API documentation for PDF conversion and editing with API-key authentication. ## Docs - [CSV To PDF](https://docs.iyzpdf.com/api-reference/conversion/csv-to-pdf.md): Convert UTF-8 CSV files into PDF. - [Excel To PDF](https://docs.iyzpdf.com/api-reference/conversion/excel-to-pdf.md): Convert XLSX workbooks into PDF. - [HTML To PDF](https://docs.iyzpdf.com/api-reference/conversion/html-to-pdf.md): Render inline HTML, uploaded HTML files, or public URLs into PDF. - [Markdown To PDF](https://docs.iyzpdf.com/api-reference/conversion/markdown-to-pdf.md): Render inline Markdown or uploaded Markdown files into PDF. - [Word To PDF](https://docs.iyzpdf.com/api-reference/conversion/word-to-pdf.md): Convert DOCX files into PDF. - [XML To HTML](https://docs.iyzpdf.com/api-reference/conversion/xml-to-html.md): Transform XML and XSLT into HTML. - [Introduction](https://docs.iyzpdf.com/api-reference/introduction.md): Authentication, limits, headers, and shared response models for the IyzPdf client API. - [Compress PDF](https://docs.iyzpdf.com/api-reference/pdf/compress.md): Compress a PDF document with low, medium, or high quality settings. - [Merge PDF](https://docs.iyzpdf.com/api-reference/pdf/merge.md): Merge multiple PDF files into a single output document. - [Remove Pages](https://docs.iyzpdf.com/api-reference/pdf/remove-pages.md): Remove specific 1-indexed pages from a PDF. - [Get API Key](https://docs.iyzpdf.com/guides/api-keys.md): Create, store, rotate, and send IyzPdf API keys safely. - [HTML To PDF Guide](https://docs.iyzpdf.com/guides/html-to-pdf.md): Choose the right HTML-to-PDF request mode and use PDF options effectively. - [Office And CSV Guide](https://docs.iyzpdf.com/guides/office-to-pdf.md): Prepare Word, Excel, and CSV files correctly before sending them to IyzPdf. - [PDF Workflow Guide](https://docs.iyzpdf.com/guides/pdf-workflows.md): Understand the multipart request patterns for merge, remove pages, and compress operations. - [Pricing](https://docs.iyzpdf.com/guides/pricing.md): Review plans, compare credit options, and contact sales for custom volume. - [XML To HTML Guide](https://docs.iyzpdf.com/guides/xml-to-html.md): Transform XML with XSLT and use the generated HTML in your own workflows. - [Introduction](https://docs.iyzpdf.com/index.md): Client-facing API documentation for converting documents and editing PDFs with IyzPdf. - [Quickstart](https://docs.iyzpdf.com/quickstart.md): Create an API key, make your first request, and understand the default response pattern. ## OpenAPI Specs - [openapi](https://docs.iyzpdf.com/openapi.json)