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KioTools
  • +100 Tools
  • 100% Free
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  • No Sign-up
  • Runs locally

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PDF Workspace

What is this tool?

A chained PDF-editing workspace bundling four PDF Workspace tools into one flow, so a document can go from merging through numbering, watermarking, and signing without downloading and re-uploading between each step.

When to use it

  • Merging multiple PDFs into one document, then adding page numbers
  • Watermarking a contract and then signing it in the same session
  • Redacting sensitive pages before adding page numbers for a final version
  • Building a numbered, signed document from several separate PDF files
  • Making several sequential edits to one PDF without re-uploading each time

How to use it

  1. 1Upload one or more PDFs on any tab — the result is shared across the workspace
  2. 2Use the tabs in the order your task needs (Merge & Split, Page Numbers, Watermark & Redact, Sign)
  3. 3Each tab's output PDF becomes the next tab's starting document
  4. 4Preview the result at each step
  5. 5Download the final PDF once all your edits are applied

Frequently asked questions

Do I need to use every tool in this workspace?

No — each tab works on its own; use only the ones your task needs.

Is my PDF uploaded to a server?

No — merging, numbering, watermarking, redacting and signing all happen locally in your browser.

Is the signature a legally binding digital signature?

No — it's a visual signature stamp placed on the page, not a certificate-based digital signature.

Can I merge PDFs from different sources in one go?

Yes — the Merge & Split tab accepts multiple PDF files and lets you reorder pages before combining them.