--- title: "PDF and document conversion server | Nutrient" canonical_url: "https://www.nutrient.io/guides/document-engine/conversion/" md_url: "https://www.nutrient.io/guides/document-engine/conversion.md" last_updated: "2026-06-09T10:25:14.392Z" description: "Uncover the secrets to seamless document conversion with our expert guide. Maximize efficiency and streamline your workflow today!" --- # PDF and document conversion server Document Engine accepts multiple file formats as input, including PDF, Word, Excel, PowerPoint, and images. It can output files in PDF, PDF/A, Excel, PNG, JPEG, WebP, and TIFF formats. Converted files can be opened in our Web, iOS, Android, React Native, and Flutter client SDKs. ## Guides for conversion - [Office to PDF](/guides/document-engine/conversion/office-to-pdf.md) Learn how to convert Microsoft Office files to PDF using Document Engine’s API. Includes examples for disk and URL sources with markup mode options. - [To PDF/A](/guides/document-engine/conversion/to-pdfa.md) Follow our guide to convert documents to PDF/A format and ensure long-term preservation with expert tips and techniques. - [Office to image](/guides/document-engine/conversion/office-to-image.md) To convert an Office document to an image, post a multipart request to the /api/build endpoint, including both the Office file as the input. - [To PDF/UA](/guides/document-engine/conversion/to-pdfua.md) Learn how to automatically tag PDF documents for PDF/UA-1 accessibility compliance using Nutrient Document Engine build instructions. - [Image to PDF](/guides/document-engine/conversion/image-to-pdf.md) To convert an image file to a PDF, send a request to the /api/build endpoint, including both the image file as input and the instructions JSON. - [Text to PDF](/guides/document-engine/conversion/text-to-pdf.md) Learn how to convert text files to PDF using Document Engine’s API. Includes examples for disk and URL sources with simple conversion instructions. - [PDF to image](/guides/document-engine/conversion/pdf-to-image.md) To convert a PDF file to an image, send a multipart request to the /api/build API endpoint, including both the source document. - [PDF to Office](/guides/document-engine/conversion/pdf-to-office.md) To convert a PDF document to Office format, send a multipart request to the /api/build API endpoint, including both the source document. - [PDF to HTML](/guides/document-engine/conversion/pdf-to-html.md) Learn how to convert PDF to HTML with Document Engine, including page and reflow layouts and optional processing steps. - [PDF to Excel](/guides/document-engine/conversion/pdf-to-excel.md) Unlock powerful techniques to enhance your online presence and drive user engagement. Learn how to connect with your audience effectively today! - [HTML to PDF](/guides/document-engine/conversion/html-to-pdf.md) Learn how to convert HTML to PDF with operations such as watermarking and page rotation. Explore our guide for PDF generation techniques. - [CAD to PDF](/guides/document-engine/conversion/cad-to-pdf.md) To convert a CAD file to a PDF, send a request to the /api/build endpoint, including both the CAD file as input and the instructions JSON. **Call to Action** Start your free trial for unlimited access and expert support. [Learn More](https://www.nutrient.io/sdk/document-engine/getting-started.md) --- ## Related pages - [Convert image files to PDF](/guides/document-engine/conversion/image-to-pdf.md) - [Convert CAD files to PDF](/guides/document-engine/conversion/cad-to-pdf.md) - [Convert HTML to PDF](/guides/document-engine/conversion/html-to-pdf.md) - [Convert MS Office documents to image files](/guides/document-engine/conversion/office-to-image.md) - [PDF to Excel](/guides/document-engine/conversion/pdf-to-excel.md) - [Convert Office files to PDF](/guides/document-engine/conversion/office-to-pdf.md) - [Convert PDF to Office](/guides/document-engine/conversion/pdf-to-office.md) - [Convert PDF to HTML](/guides/document-engine/conversion/pdf-to-html.md) - [Convert text files to PDF](/guides/document-engine/conversion/text-to-pdf.md) - [Convert PDF to image](/guides/document-engine/conversion/pdf-to-image.md) - [Easily convert documents to PDF/A formats](/guides/document-engine/conversion/to-pdfa.md) - [Convert PDFs to PDF/UA-1](/guides/document-engine/conversion/to-pdfua.md)