PDF Converter Online
Convert JPG, PNG, Word, Excel and presentations to PDF for free. Runs in your browser without uploading files to server.
Drag and drop your image here or click to select
Max size: 50.0MB
Popular Conversion Formats
What Is Converting to PDF?
Converting to PDF transforms images (JPG, PNG) and office documents (Word, Excel, PowerPoint) into PDF format. It's the standard way to prepare files for printing, archiving, or sharing, since PDF renders identically across all devices and operating systems. Convertilo converts images to PDF entirely in your browser via pdf-lib, while Office documents are processed through server-side LibreOffice for maximum accuracy.
About Converting Files to PDF
Free online converter for creating PDFs from images (JPG, PNG, WebP, GIF, SVG, BMP) and office documents (Word, Excel, PowerPoint). Files are processed locally in the browser without uploading to a server.
How Conversion Works
- Images are embedded into PDF without recompression — quality is preserved
- Word, Excel, PowerPoint documents are converted with formatting intact
- Multiple files can be merged into a single PDF document
- Processing runs locally — files never leave your computer
Technology Behind Our PDF Tools
Our PDF tools are built on two powerful JavaScript libraries that run entirely in your browser:
pdf-lib — A library for creating and modifying PDF documents. Used for merging, splitting, and page manipulation operations.
PDF.js — Mozilla's PDF rendering engine for parsing and displaying PDF content. Powers our PDF viewer and page export features.
Canvas API — Browser's built-in rendering API used for converting PDF pages to image formats (JPG, PNG, WebP) at any resolution.
All operations are performed locally — your documents are never uploaded to any server, ensuring complete confidentiality.
Benefits of Our Free PDF Converter
Free with No Registration
Convert files to PDF with no limits, no watermarks, and no account required.
Images and Documents
Supports JPG, PNG, WebP, GIF, SVG, BMP, plus Word, Excel, and PowerPoint — all in one tool.
Security and Privacy
Conversion happens entirely in your browser. Files are never sent to a server and stay only with you.
FAQs About Converting to PDF
Can I combine multiple files into one PDF?
Yes, you can upload multiple images and merge them into a single PDF document. Enable the merge option before converting.
What formats can be converted to PDF?
Images: JPG, PNG, WebP, GIF, SVG, and BMP. Documents: Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX).
Is PDF conversion really free?
Yes, conversion is completely free with no watermarks, no file limits, and no registration required.
Is it safe to convert files online?
Yes. Images are processed entirely in your browser and never sent to a server. Office documents are processed over a secure connection.
Is quality preserved during conversion?
Yes. Images are embedded into the PDF without recompression. Office documents retain their fonts, tables, and formatting.