LocalPDF Studio

LocalPDF Studio is a free, open-source, privacy-first PDF toolkit built to work 100% offline — no document uploads, no cloud required. Whether you’re merging PDFs, splitting large files, extracting images, adding watermarks, or locking/unlocking documents, this tool gives you full control — without compromising your privacy. Stop uploading your PDF files to random websites that may use or sell your sensitive documents, install LocalPDF Studio right now.

Key features:

• Add comment, hand signature, highlight, text, drawing or image. (Powered by Mozilla PDF.js)
• View PDF in presentation mode.
• Combine multiple PDFs into one.
• Split large PDFs into smaller parts.
• Delete, reorder, or crop pages with ease.
• Convert PDF pages to high-quality images.
• Add page numbers or watermarks.
• Lock or unlock PDFs with passwords.
• Edit metadata and extract images from documents.
• Remove all PDF metadata.
• Convert images to PDF file.
• Perform OCR on image or PDF. Both types of files are supported.
• Redact PDF content as your wish.
• Convert colorful PDFs to grayscale PDF file to save ink while printing.
• Build a fillable PDF form with texts, labels, checkboxes and radio buttons.
• Add texts, filters or crop, resize your image files.
• Works fully offline, with full support for Windows, macOS (Intel) and Linux.
• Built using modern, efficient technologies for speed and minimal footprint.

Why LocalPDF Studio?

• 100% Offline & Private: Your documents stay local. Nothing is uploaded.
• Free & Open Source (AGPL-3.0): no cost, no lock-in.
• Cross-Platform: One tool for all your devices: Windows, Linux, macOS.
• Lightweight: Fast startup, modern backend, minimal system stress.