FlowToolkit
Utility

PDF Editor

Merge, split, reorder, rotate, and preview PDF pages — all in your browser.

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About this tool

Open one or more PDFs, merge their pages into a single document, drag-and-drop to reorder, rotate pages in 90° steps, delete unwanted pages, extract any single page as its own PDF, or split every page into separate files. Click any thumbnail for a full-size preview. All processing is local.

PDF editing without the upload

PDFs are notoriously hard to edit because the format was designed for fixed presentation, not for change. Most PDF editors solve this by uploading the file to a server, applying changes with a server-side library, and returning a new file. That works, but it hands your contracts, invoices, and personal documents to a third party.

This PDF Editor runs entirely in your browser using pdf.js for rendering and pdf-lib for modification. Documents are parsed in memory, edits are applied in place, and the result is downloaded as a fresh file without ever leaving the tab.

Available operations

  • Open one or more PDFs and see every page as a thumbnail.
  • Merge: append the pages of any number of additional PDFs.
  • Reorder: drag any thumbnail onto another to move it.
  • Rotate: turn an individual page or the whole document in 90° steps.
  • Delete: remove unwanted pages with a single click.
  • Extract: download any single page as its own PDF.
  • Split: export every page as a separate file inside a ZIP archive.

When it pays off

Common workflows include combining a signed cover letter with a CV, removing a confidential page from a contract before sharing, rotating a scanned document that came in sideways, and splitting a long invoice batch into one PDF per page for an accounting upload. Because the tool runs locally, you can edit financial statements, legal documents, and medical reports with no risk of leakage.

Frequently asked questions

Does it upload my PDFs?

No. PDFs are parsed and edited locally in your browser. Confidential documents, contracts, and personal files stay on your device.

Can I merge multiple PDFs?

Yes. Drop additional PDFs onto the dropzone and their pages append to the queue. Reorder and export to merge them into a single document.

Can I reorder pages by drag-and-drop?

Yes. Drag any thumbnail onto another to reposition it. Reorder pages between merged PDFs the same way.

Can I split each page into its own file?

Yes. Click 'Split each → ZIP' to download a zip containing every page as a separate PDF file.

How do I delete a page from a PDF?

Select the thumbnail of the page you want to remove and click Delete (or press the Delete key). Export the result to download the trimmed PDF.

How do I rotate a PDF page?

Select the thumbnail and click the rotate button to turn it 90 degrees clockwise. Repeat for 180 or 270 degrees.

Can I extract a single page from a PDF?

Yes. Right-click any thumbnail and choose Extract to download just that page as its own PDF file.

Is there a file size limit?

No hard limit. Performance depends on your device. PDFs in the hundreds of pages work comfortably on most laptops.