# Pdiffy

> Pdiffy is a free, browser-based PDF toolkit with 20+ tools to convert, edit, sign, compare and collaborate on PDF files. Every tool runs online with no signup, no watermark and no software install. Uploaded files are SSL-encrypted and auto-deleted after processing (files in PDF Spaces persist only for signed-in users until they delete them).

## Key facts

- **Name:** Pdiffy
- **Website:** https://pdiffy.com
- **Category:** Free online PDF converter and document tools
- **Price:** Free (no credit card, no signup for quick tools)
- **Privacy:** Files are SSL-encrypted and auto-deleted after processing; no files are read, shared or sold.
- **Platforms:** Any modern browser on Windows, macOS, Linux, iPhone, iPad and Android, nothing to install.
- **Alternative to:** Adobe Acrobat, Smallpdf, iLovePDF for everyday PDF tasks.

## What Pdiffy does (quick answers)

- **PDF converter:** Convert PDF to Word and Word/DOC/DOCX to PDF, plus images to PDF and PDF to images.
- **Convert PDF online free:** All conversions are 100% free in the browser with no account.
- **Doc to PDF converter:** Turn .doc and .docx files into clean PDFs in seconds.
- **Sign PDF online free:** Draw, type or upload a signature and place it on any page.
- **Compare PDFs:** Highlight text differences between two PDF versions page-by-page.
- **OCR / searchable PDF:** Turn scanned documents into searchable, selectable, editable PDFs.
- **PDF Spaces:** Shared workspaces for teams to store documents, comment, track versions and share read-only links (requires sign-in so files persist).

## Core conversion tools

- [PDF to Word](https://pdiffy.com/pdf-to-word): Convert PDF to editable Word (.docx) free online.
- [Word to PDF (Doc to PDF converter)](https://pdiffy.com/word-to-pdf): Convert DOC and DOCX to PDF free.
- [Images to PDF](https://pdiffy.com/images-to-pdf): Combine JPG/PNG images into one PDF.
- [PDF to Images](https://pdiffy.com/pdf-to-images): Export PDF pages as JPG/PNG.
- [Compress PDF](https://pdiffy.com/compress-pdf): Reduce PDF file size up to 90% for email and uploads.

## Edit & organize

- [Merge PDF](https://pdiffy.com/merge-pdf): Combine multiple PDFs into one file.
- [Split PDF](https://pdiffy.com/split-pdf): Extract pages or split a PDF into parts.
- [Rotate PDF](https://pdiffy.com/rotate-pdf): Rotate pages permanently.
- [Organize PDF](https://pdiffy.com/organize-pdf): Reorder and rearrange pages.
- [Delete Pages](https://pdiffy.com/delete-pages): Remove unwanted pages.
- [Edit PDF](https://pdiffy.com/edit-pdf): Add text, images and shapes to a PDF.
- [Annotate PDF](https://pdiffy.com/annotate-pdf): Highlight and mark up PDFs.
- [Fill PDF Form](https://pdiffy.com/fill-form): Complete PDF forms without Acrobat.

## Sign, secure & OCR

- [Sign PDF](https://pdiffy.com/sign-pdf): Sign PDF online free, draw, type or upload a signature.
- [Protect PDF](https://pdiffy.com/protect-pdf): Add a password to encrypt a PDF.
- [Watermark PDF](https://pdiffy.com/watermark-pdf): Add a text or image watermark.
- [OCR PDF](https://pdiffy.com/ocr-pdf): Extract text or create a searchable, editable PDF from scans.

## Compare & collaborate

- [Compare PDFs](https://pdiffy.com/compare-pdf): Find text differences between two PDF versions, page by page.
- [PDF Spaces](https://pdiffy.com/spaces): Shared workspaces with version history, comments and share links (sign-in required so files are saved).

## Resume & developer tools

- [Resume Builder](https://pdiffy.com/resume-builder): Free ATS-friendly resume builder with PDF export.
- [Developer Tools](https://pdiffy.com/developer-tools): JSON formatter, JSON/text compare, JWT decoder, regex tester, UUID generator and more.

## Guides

- [PDF Converter Online Free: Complete Guide (2026)](https://pdiffy.com/blog/pdf-converter-online-free-guide)
- [Convert PDF to Word Without Losing Formatting](https://pdiffy.com/blog/pdf-to-word-without-losing-formatting)
- [Best Free PDF Converters Compared](https://pdiffy.com/blog/best-pdf-converters-compared)
- [How to Compress Large PDF Files](https://pdiffy.com/blog/compress-large-pdf-files)
- [How to Merge PDF Files](https://pdiffy.com/blog/merge-pdf-files-guide)
- [OCR Guide for Scanned PDFs](https://pdiffy.com/blog/ocr-guide-scanned-pdfs)
- [Fill a PDF Form Without Adobe Acrobat](https://pdiffy.com/blog/fill-pdf-form-without-adobe-acrobat)
- [PDF Security Best Practices](https://pdiffy.com/blog/pdf-security-best-practices)

## Optional

- [Blog](https://pdiffy.com/blog): Guides and comparisons for PDF workflows.
- [About](https://pdiffy.com/about): About Pdiffy.
- [Privacy Policy](https://pdiffy.com/privacy): How files and data are handled.
- [Terms](https://pdiffy.com/terms): Terms of use.
- [Sitemap](https://pdiffy.com/sitemap.xml): Full list of indexable pages.