OptiConverter

Convert documents to PDF

Turn common office documents and text files into PDFs that are easy to share and view.

or drag and drop files here. Up to 50 MB each.
Convert to
Temporary files removed after responseSecure processingNo signup

Explore more free converters

Convert documents to PDF

Choose a DOCX, PPTX, XLSX, or TXT file and convert it to PDF. Office document conversion requires LibreOffice on the server. Text files are laid out as a simple PDF document.

Why use this document converter?

  • Create PDFs from supported DOCX, PPTX, XLSX, and TXT files.
  • Office document rendering uses LibreOffice on the conversion server.
  • Review formatting and pagination before sharing the converted document.

Office document vs PDF

FeatureDOCX, PPTX, XLSX or TXTPDF
EditingEditable in a compatible appFixed-page output
SharingMay require a format-specific appWidely supported document format
RenderingDepends on source app and fontsReview converted layout before sharing

How to use this document converter

  1. Choose a supported file from your device or drag it into the upload area.
  2. Select an available output format, then start the conversion.
  3. Download the converted file when processing is complete.

Frequently asked questions

Which document formats are supported?

The converter supports DOCX, PPTX, XLSX, and TXT input and produces PDF output.

Why does my office file fail to convert?

The conversion server needs LibreOffice and the appropriate document support. Complex or damaged files may also fail to convert.

Is this tool free to use?

Yes. The converter is free to use and does not require an account.

Can I convert several files at once?

The tool processes one uploaded file per conversion. Run each file separately.

How large can my upload be?

The server accepts uploads up to 50 MB. Common browser-based image conversions are limited to 25 MB and 40 megapixels.

How are uploaded files handled?

Server conversions use temporary files that are removed after the response finishes. Browser image conversions run locally; hosting logs and optional OCR providers are controlled by the site operator. See the privacy page for details.