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Vector path drawings · Layer sorting tools · Advanced metadata editor · Priority processing

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Interactive Overlays

Easily overlay text blocks, headers, signature panels, or note blocks on any page coordinate.

Custom Image Insertion

Place external PNG/JPG graphics, crop images, scale overlays, and position icons precisely.

100% Secure & Private

Your documents never touch a server. All canvas drawing and merging run locally on your device.

Free Online PDF Editor
Edit PDF Files in Your Browser

Add text, write notes, drop images, draw shapes, and mask sensitive page areas. Edit files locally with absolute compliance and total privacy.

What is the Online PDF Editor?

An online PDF editor lets you annotate and draw on top of PDF page coordinates. Whether you are correcting errors, adding custom watermarks, placing signature blocks, or white-out masking incorrect text structures, our editor offers a suite of tools that runs directly inside your internet browser.

SmartPDFs Plus processes your documents 100% locally in your browser's memory. No uploads are sent to server folders, which completely eliminates data intercept risks and ensures instant rendering.

How to Edit PDF Online in 3 Simple Steps

01

Select PDF Document

Drag and drop your PDF file or click browse to load the file directly in the local browser canvas.

02

Add Text, Images & Marks

Use the top panel options to type text overlays, draw shapes, redact paragraphs, or paste graphics.

03

Download Updated PDF

Confirm the page layout edits and download your final, watermark-free document instantly.

Key Features & Benefits

100% Local privacy

Security is our core policy. Unlike other platforms that request file transfers to their servers, your files remain strictly local on your storage system.

Rich editing elements

Quickly place dynamic text containers, add high-quality logo images, white-out private information, and save the updated file without any watermarks.

  • Supports large visual documents with automatic thumbnail preview compilation.
  • Quick layout zoom controls for precise editing coordinate selections.
  • Zero account requirements — start editing files instantly without registration.
  • Touch-friendly sliders for smooth mobile page navigation.

Frequently Asked Questions

Can I edit existing text in a PDF with this tool?

You can add new text blocks, place shapes, add images, and draw annotations. To modify existing text, you can use our white-out/redaction tool to cover the original text and write new text over it.

Is this online PDF editor really free?

Yes! You can edit, annotate, and modify your PDFs completely for free with no watermarks and no sign-up required.

How secure is this online PDF editor?

Our editor runs 100% client-side in your web browser. Your files are never uploaded to any server or cloud, meaning your private data remains completely private.

Does the edited PDF work in other viewers?

Yes. All edits are compiled into standard PDF elements compatible with Adobe Acrobat Reader, Google Chrome, Apple Preview, and other readers.

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Watermark PDF

Stamp a text or image watermark over every page of your PDF.

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Page Numbers

Add professional page numbers to any position on your PDF pages.

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Edit Metadata

Update Author, Title, Subject and other document metadata fields.

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Redact PDF

Permanently black out sensitive text and images from your PDF.

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Bookmark PDF

Add clickable bookmarks and a table of contents to your PDF.

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Flatten PDF

Flatten form fields and annotations into the PDF page content.

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