Offline-first Windows app

Offline PDF converter for private files.

CometPDF converts common work files to PDF on your Windows computer. It is built for documents you do not want to upload to an online converter: contracts, quotes, invoices, internal spreadsheets, and Outlook emails.

This page is for a Windows desktop app, not an online upload tool. Download CometPDF once, then convert files locally.

Download CometPDF

No uploads

Files stay local on the computer during conversion.

Office aware

Uses Microsoft Office, Outlook, or LibreOffice when installed for print-like output.

Batch conversion

Convert many files and optionally merge all results into one PDF.

Popular offline conversions

Word to PDF for DOC, DOCX, and RTF documents.
Excel to PDF for XLS, XLSX, and XLSM workbooks.
Outlook MSG to PDF for email archiving.
Image to PDF for JPG, PNG, WEBP, BMP, and TIFF files.