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Merge, Reorder & Watermark Confidential PDFs in Browser

Contracts, tax packets, and board decks shouldn't be uploaded to third-party cloud converters just to combine pages or add a signature sheet. PDF Studio merges, reorders, splits, stamps diagonal watermarks, scrubs metadata, and converts PDF ↔ images locally.

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PDF Studio — merge pdf locally in browser

Powered by pdf-lib and a local pdf.js renderer, PDF Studio generates visual thumbnails for every page so you can rotate upside-down scans, delete blank sheets, stamp page numbers, and download the assembled PDF immediately.

Quick tip: Before sending external drafts, open the Metadata panel in PDF Studio to clear hidden Author and Producer strings.

Frequently asked questions

Can I also render PDF pages to high-DPI PNGs in PDF Studio?

Yes. Switch to the PDF ↔ Images & Text mode inside PDF Studio to export 1×–3× PNG/JPEG pages or combine image scans into a PDF.

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All-in-one browser image studio: batch JPEG/PNG/WebP compression, format conversion, aspect-ratio crop & resize, filters, watermarks, EXIF/GPS scrubbing, .ico favicon packs, plus colour-palette extraction and PSNR visual diffs.

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