PDFStudio by Barchitecture | Free Offline PDF Toolkit

Your everyday PDF toolkit — free, offline, and made for unlimited use. PDFStudio by Barchitecture brings your PDF tasks into one clean, visual workspace, with color-coded tools, clear icons, page previews and real percentage progress.

Merge, split, organize, compress, watermark and protect PDFs. Convert PDF pages to JPG/PNG, Word, PowerPoint, Excel, text or Markdown. Reorder and rotate pages, select ranges, undo edits, add visible signatures, fill supported forms, compare documents and redact areas. Includes animated progress, cancellation, and light/dark appearance.

28 tools in one dashboard: 26 included tools plus optional Office-to-PDF and OCR tools requiring local LibreOffice or Tesseract engines. Windows 64-bit portable app: extract the complete ZIP and open PDFStudio-Visual.exe. Keep the accompanying folders together. No Python installation is needed; Microsoft Edge or another modern local browser is required.

Free, offline and unlimited repeated use: no subscription, usage credits or daily task quota. Documents are processed on your computer. Per workspace: 250 MiB per file, 100 files, 1,000 pages and 1 GiB imported data; clear the workspace for another batch. Unlimited use does not mean unlimited single-file size. Compression is lossless and savings vary; conversions should be reviewed. Visible signatures are not certificate-based digital signatures; flatten/redact create static image pages. By Barchitecture — barchitecture.net. Includes the existing PDFStudio engine, MIT license and third-party notices.