BilisPDF in practice.

Get started

1. Choose Merge, Extract, Rotate or Images to PDF. Changing tools clears the selected files.
2. Add files using the picker or drag and drop. Reorder with the up/down controls.
3. For extraction or rotation, enter all or page ranges such as 1-3,5. Numbers refer to physical pages starting at 1.
4. Process the files, then choose Download PDF. Cancel stops the worker without changing original files.

What works here

• Merge PDFs in a user-controlled file order.
• Extract unique, ascending page ranges to a new PDF and rotate selected pages clockwise.
• Combine PNG/JPEG images into a PDF with one centered image per A4 page.
• Signature/extension validation, per-file/total byte limits, bounded page/image sizes.
• Real progress, errors, cancellation, a 30-second worker timeout and explicit result download.

Storage & privacy

Documents and results are held in memory only. No document history, file paths, uploads or telemetry are implemented. The application shell must initially load over the network; an installable offline PWA is not included.

Limits to know

• DOCX/XLSX/PPTX conversion, Explorer integration, Office/LibreOffice, PDF rendering/compression and password-protected PDFs require other tools.
• BMP/TIFF/WebP and other image formats are not accepted by this browser edition.
• Maximum 20 files, 20 MiB each, 50 MiB total, 500 input PDF pages, and 20 megapixels per image.
• PDFs are rewritten into a fresh document; interactive forms, signatures, bookmarks and advanced document features may not be preserved. This is not a PDF sanitizer.
• Worker termination limits execution time, not browser memory. Complex hostile documents can still exhaust a tab before the timeout.

The original application

The original repository remains the reference for native features. Private repositories and their releases require authorized GitHub access.