UnlimitedPDF — Private PDF Toolbox

Merge, split, organize, convert, compress and annotate PDFs locally in Chrome. Free, open source, no uploads, no accounts.

UnlimitedPDF is a free, open-source PDF editor and toolbox that processes documents entirely inside your browser. Merge, split, compress, convert, organize, edit, fill, sign and protect PDFs without uploading your files to a server. There are no accounts, watermarks, subscriptions or artificial daily limits. WHY INSTALL UNLIMITEDPDF? Unlike cloud-based PDF tools, your documents stay on your device. UnlimitedPDF is designed for private or confidential files such as contracts, invoices, financial documents, reports, applications and business records. ✓ Fully local PDF processing ✓ No file uploads ✓ No account required ✓ No watermarks ✓ No daily usage limits ✓ Free and open source ✓ Works offline after installation ✓ Minimal browser permissions ALL-IN-ONE PDF TOOLBOX Organize PDFs: • Merge multiple PDFs and images • Split PDFs by page or range • Extract selected pages • Reorder, rotate, delete and duplicate pages • Reverse or interleave pages • Add blank pages • Crop pages • Resize pages to A4, Letter or custom dimensions Edit and annotate: • Add text, images and links • Draw directly on PDF pages • Add shapes, arrows, highlights and notes • Cover unwanted content • Add headers and footers • Insert page numbers and Bates numbering • Add text or image watermarks Fill and sign: • Complete supported PDF form fields • Flatten completed forms • Draw, type or upload a signature • Add initials and dates • Place and resize signatures anywhere in the document Compress and optimize: • Optimize PDF structure without changing page appearance • Compress image-heavy PDFs • Create smaller rasterized PDFs • Choose resolution and image quality • Convert documents to grayscale or black and white • Compare the result with the original file size before saving Convert PDFs: • Convert PDF pages to JPG, PNG or WebP • Convert images to PDF • Extract PDF text to TXT or Markdown • Export PDF content to DOCX • Extract selected tables to CSV or XLSX • Export PDF pages to PowerPoint slides • Create PDFs from text, Markdown, HTML, images and spreadsheets OCR scanned documents: • Recognize text in scanned PDFs and images • Create searchable PDFs • Extract editable text • Process only pages that require OCR • Support multiple OCR languages • Deskew and improve scanned pages Privacy and security tools: • Add password protection • Unlock PDFs you are authorized to access • Remove document metadata • Inspect PDF properties • Remove comments, attachments and form values • Permanently redact selected areas using secure raster redaction • Clean and flatten sensitive documents Additional tools: • Compare two PDF documents • Remove blank pages • Create booklet and N-up printing layouts • Create contact sheets • Extract odd or even pages • Inspect fonts and image resolution • Count words and estimate reading time • Process multiple documents locally LOCAL PDF AI On supported Chrome devices, UnlimitedPDF can use Chrome’s built-in local AI capabilities to: • Summarize PDFs • Translate extracted text • Ask questions about a document • Find answers with references to relevant pages AI availability depends on your Chrome version and device. UnlimitedPDF does not send your document to a cloud AI service. A PRIVATE ALTERNATIVE TO ONLINE PDF TOOLS UnlimitedPDF is a privacy-focused alternative to tools such as Smallpdf, iLovePDF, Adobe Acrobat Online and PDF24. Instead of uploading confidential files for remote processing, UnlimitedPDF performs supported operations directly on your computer. The project is open source, allowing anyone to inspect how files are handled, contribute improvements or build their own version. HOW TO USE 1. Install and pin UnlimitedPDF. 2. Open the extension. 3. Select a PDF, image or supported document. 4. Choose the tool you need. 5. Preview and save the result. You can also open supported PDF files directly from the active browser tab. IMPORTANT UnlimitedPDF does not impose file-size or usage limits, but very large documents may be limited by your device’s available memory and processing power. Some operations—such as strong compression, secure redaction or scanned-document conversion—may flatten interactive content or reduce editability. UnlimitedPDF clearly warns you before applying these changes. Your documents belong to you. UnlimitedPDF helps you work with them without giving them to someone else.