Browser-local document processing

How MyFreePDFEditor edits PDFs without uploading them

The document work happens on your device. The browser reads the PDF, applies your changes, and generates the download without sending the document contents to a processing server.

01

Select locally

Your browser opens the PDF you choose from your device.

02

Process in browser

PDF.js, pdf-lib, canvas, and the editor operate in browser memory.

03

Download the result

A new PDF is generated as a local browser download.

What happens to the file

A short-lived local workflow

Uploading from the homepage stores a pending copy in your browser's IndexedDB so it survives the move to the editor page. The editor reads that record and removes it from the pending-upload store. Active work then stays in browser memory until you leave or reload the editor.

Read the privacy details

Temporary browser storage

Used only to hand a homepage selection to the editor on the same device.

In-memory editing

Page rendering and visual edits happen within the active browser session.

No document account

The core tools do not require an account or cloud workspace for file processing.

New local output

The original file is not overwritten. You choose where the exported copy is saved.

What leaves the browser

Usage signals, not document contents

Basic product analytics can record events such as a page view, a started tool, or a successful export. The PDF bytes, extracted text, file contents, signatures, and annotations are not included in those events.

PDF bytes stay local
Extracted text stays local
Signatures stay local
Exports are browser-generated

FAQ

Questions about local PDF processing

Does MyFreePDFEditor upload my PDF to a server?+

No. The active editor, merge, and compression workflows process the selected PDF contents in your browser. The document is not sent to a document-processing server.

Why is temporary browser storage used?+

The homepage and editor are separate pages. Temporary IndexedDB storage lets the browser carry the selected file across that navigation, after which the editor consumes and removes the pending record.

Where is the edited PDF created?+

The export is generated in browser memory. The browser then creates a local download for the new PDF file.

Does browser processing mean no data leaves my device at all?+

PDF contents stay local in the active tools. Like most websites, the app can send ordinary usage events such as page views and tool success or failure, but those events do not include the document contents.

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