Runs in your browser · files are never uploaded
PDF Studio
Merge, split, compress, reorder, watermark, OCR and convert PDFs. Processing happens on your device; the only downloads are the open-source libraries each tool needs (and OCR language data).
Merge
Drop PDF files here
Add two or more PDFs, then arrange them in order.
Files are combined top to bottom — use the arrows to change the order.
Creates a new PDF containing only the pages you list, in that order.
Move, rotate or remove pages, then save. Removed pages are dimmed and can be restored.
Re-encodes every page as a JPEG image. This shrinks scans and image-heavy PDFs a lot, but text is no longer selectable and text-only PDFs may get bigger — you'll see the size before downloading.
Reads the PDF's text layer and guesses headings from font sizes. Works for digitally created PDFs; for scans use OCR. Always review the result — layout-heavy PDFs (columns, tables) come out imperfect.
Recognises text in scanned pages with Tesseract. The first run downloads the language model (about 2–10 MB); accuracy depends on scan quality.
Each image becomes one page at its original size, in list order. JPEG, PNG, WebP, GIF and BMP are supported.
Renders every page to PNG and downloads them as a ZIP.
Current values are filled in when you add a PDF.