What this tool does
Duplicate selected pages, Extract selected pages or strict ranges, add PDF/image/blank pages, edit common output metadata, and apply basic page numbers plus text or image watermarks.
Runs locally in your browser. PDFs, watermark images, metadata, overlays, and output stay in browser memory. Limits are 50 MB per file (PDF), 100 MB total sources, 500 pages, 20 images per batch, and a 50 MB image batch. Image additions accept validated PNG and JPEG bytes. Export may invalidate digital signatures and may not preserve uncommon PDF features.
Drop one or more PDFs hereor use Add PDFs / Add images. Files stay in browser memory.
Pages
Add a PDF to begin. Runs locally in your browser.
Organize pages, metadata, numbering, and watermarks without uploading source bytes.
Why it is useful
One browser-local workspace replaces repeated merge, split, images-to-PDF, metadata, and simple stamping steps.
Bounded local workspace
Accepts multiple PDFs with 50 MB per-file, 100 MB aggregate, and 500-page limits, plus bounded PNG/JPEG additions. Thumbnail work is lazy and concurrency-bounded.
Truthful metadata and overlays
The first source initializes the output metadata draft; later sources never merge it. Metadata clearing is not sanitization. Numbering and watermarks are flattened additions, not secure controls.
Truthful extraction and export
Extraction and full export each create a newly assembled PDF. Existing digital signatures may become invalid and uncommon PDF features may not be preserved.
Privacy note
PDF, image, metadata, overlay, and rendered page data stay in browser memory. The editor does not upload inputs or use runtime network requests, telemetry, browser storage, or URL-restored document data.
Important limitation
Removing content is not secure redaction. The editor does not edit arbitrary embedded text, run OCR, sanitize hidden data, compress documents, or preserve cryptographic signatures.
PDF Toolkit workflow
Start in the visual editor, then move between merging, splitting, removing, rotating, and inspecting PDFs while keeping document bytes local to the browser.