# PDFtodo — Online PDF & Document Suite

> PDFtodo (https://pdftodo.io) is a 100% free, private, and secure client-side PDF and document processing suite. All document conversions, merging, editing, and OCR run directly in the user's browser via WebAssembly and JavaScript, guaranteeing that sensitive files never leave the local device.

## Core Capabilities
- **Organize**: Merge PDF, Split PDF, Remove Pages, Extract Pages, Organize PDF, Scan to PDF.
- **Optimize**: Compress PDF, Repair Corrupted PDF, OCR PDF (Optical Character Recognition).
- **Convert to PDF**: JPG to PDF, Word to PDF (DOCX), PowerPoint to PDF (PPTX), Excel to PDF (XLSX), HTML to PDF, Markdown to PDF, EPUB to PDF, Text to PDF.
- **Convert from PDF**: PDF to JPG, PDF to Word (DOCX), PDF to PowerPoint (PPTX), PDF to Excel (XLSX), PDF to Text, PDF to HTML, PDF to EPUB, PDF to CSV.
- **Edit & Annotate**: Edit PDF text & images, Add Page Numbers, Add Watermarks, Rotate PDF, Crop PDF, Flatten PDF, Compare PDF, Excel Editor, PowerPoint Viewer.
- **Security & Signatures**: Sign PDF (e-Sign), Protect PDF (AES-256 password encryption), Unlock PDF (remove password), Redact PDF (blackout sensitive data).
- **PDF Intelligence & Cloud**: AI Summarizer, Document Chat, Google Drive, OneDrive, and Dropbox integrations.

## Tools Directory
- [Merge PDF](https://pdftodo.io/#merge-pdf): Combine multiple PDF documents into one single file.
- [Split PDF](https://pdftodo.io/#split-pdf): Separate specific page ranges or extract all pages into separate PDFs.
- [Compress PDF](https://pdftodo.io/#compress-pdf): Reduce PDF file size while maintaining high visual quality.
- [PDF to Word](https://pdftodo.io/#pdf-to-word): Convert PDF files to editable Microsoft Word DOCX documents.
- [Word to PDF](https://pdftodo.io/#word-to-pdf): Convert DOC and DOCX documents to standard PDF.
- [PDF to Excel](https://pdftodo.io/#pdf-to-excel): Extract tables and tabular data from PDF into XLSX / CSV spreadsheets.
- [Excel to PDF](https://pdftodo.io/#excel-to-pdf): Convert XLSX spreadsheets into clean, formatted PDFs.
- [PDF to PowerPoint](https://pdftodo.io/#pdf-to-powerpoint): Convert PDF pages into editable PowerPoint PPTX slides.
- [PowerPoint to PDF](https://pdftodo.io/#powerpoint-to-pdf): Convert PPT and PPTX presentations into PDF files.
- [PDF to JPG](https://pdftodo.io/#pdf-to-jpg): Convert each PDF page into high-resolution JPG images.
- [JPG to PDF](https://pdftodo.io/#jpg-to-pdf): Convert JPG, PNG, WEBP, and BMP images into a single PDF document.
- [OCR PDF](https://pdftodo.io/#ocr-pdf): Extract text from scanned PDFs and images using browser-based OCR.
- [Edit PDF](https://pdftodo.io/#edit-pdf): Add text, shapes, annotations, images, and highlights to PDF pages.
- [Sign PDF](https://pdftodo.io/#sign-pdf): Draw, type, or upload digital signatures and apply them to documents.
- [Protect PDF](https://pdftodo.io/#protect-pdf): Encrypt PDF files with strong AES-256 passwords.
- [Unlock PDF](https://pdftodo.io/#unlock-pdf): Remove password protection from PDFs when authorized.
- [Redact PDF](https://pdftodo.io/#redact-pdf): Permanently blackout sensitive, confidential, or PII text and images.
- [Compare PDF](https://pdftodo.io/#compare-pdf): Side-by-side visual and textual comparison of two PDF revisions.
- [AI Summarizer](https://pdftodo.io/#ai-summarize): Generate concise summaries, key takeaways, and answer questions from PDFs.

## Privacy & Security
- **Zero Server Uploads**: Processing happens client-side in the browser using WebAssembly engines (pdf-lib, pdfjs-dist, tesseract.js).
- **No Data Retention**: Documents never touch third-party servers unless explicitly saved to user-authenticated cloud storage.
- **GDPR & HIPAA Compliant**: Compliant by design due to local client-side execution.

## Full Agent Documentation
- [Full LLM Specification](https://pdftodo.io/llms-full.txt): Complete per-tool inputs, outputs, and parameters.
- [Sitemap](https://pdftodo.io/sitemap.xml): Machine-readable XML sitemap of all site endpoints.