PDF Editor

Web Toolarium

Select an object to show its editing controls.

PDF

Open a PDF

The file stays in your browser memory and is not sent to a server.

How to use

Choose a PDF, add or remove content with the editing tools, then save the edited file to your device.

Basic editing

Choose a file with Open PDF. It is loaded in this browser.
Choose a text, shape, line, or check tool, then click or drag on the page. Images and signatures can be moved and resized.
Select Save PDF when finished to download the file to your device.

Edit or remove existing text

Choose Edit existing text, then click or drag over the text you want to select.
Registering replacement text removes the original with Redaction and places the new text in the same position.
Use Permanently delete selected text or Redact area for deletion. Changes take effect when saved.

Features and cautions

Keep a separate copy of the original. Password-protected or complex PDFs may fail to load or save.
PDF content is excluded from ads and analytics traffic. If the app is unstable, update your browser and reopen the file.

What you can do with PDF Editor

Review a PDF, add information, or remove content from selected areas.

Add text

Place text anywhere and adjust language, size, color, bold, and alignment.

Shapes, lines, and checks

Add shapes, lines, or check marks and adjust their position, size, color, and width.

Images and signatures

Place PNG/JPEG images. Draw a signature with a mouse, touch, or pen, or load a signature image.

Editing controls

Navigate pages, zoom, move and resize objects, copy and paste, change layer order, and undo or redo.

Replace existing text

Remove selected original text with Redaction and add replacement text in the same place.

Save edited PDFs

Apply added text, shapes, images, and signatures to a PDF and save it to your device.

About PDF redaction

Covering text with a black or white shape may leave the underlying text or image in the PDF, where it can still be searched or copied.

Redact area and Edit existing text use PDFium Redaction when saving to remove PDF content in the selected area.

For sensitive information, reopen the saved PDF and check its display, search, copy, and extracted text. Verify important documents yourself.

Where is my PDF processed?

PDF loading, viewing, editing, and saving happen in your browser. PDFs, images, signatures, and edits are not uploaded to our server.

Unsaved edits are held in memory and are lost if you close or reload the page. Save your work as you go.

Google AdSense and Analytics are used, but PDF content and edits are not sent to them. See NOTICE and the privacy policy for details. NOTICE · Privacy policy

PDF limitations

Password-protected PDFs may not open. Remove protection before editing.
Large or multi-page PDFs may take time and use more device memory.
Compatibility is not guaranteed for XFA forms, JavaScript in PDFs, digital signatures, special fonts, and similar features.
Existing text is not edited in place. It is removed with Redaction before new text is added.
Compatibility with every PDF and viewer is not guaranteed. Check saved files in the software you plan to use.

Before you save

Save a copy of the original PDF somewhere else before editing.
Open the saved file in Adobe Acrobat Reader or your usual PDF software and check its content and layout.
After Redaction or permanent deletion, check search, copy, and extracted text as well as the visual result.
Keep the original PDF until you finish checking important documents.

Frequently asked questions

Is my PDF uploaded to a server?

No upload is used for PDF processing. PDFs are edited in your browser. External services are used for ads and analytics.

Can I enter Japanese text?

Yes. Text can use a Japanese font. Appearance can vary by PDF viewer, so check important files after saving.

Can I directly rewrite the original text?

No. Select the original text, remove it with Redaction, and add new text.

How is a black cover different from Redaction?

A black shape only covers content visually. Redaction removes the selected PDF content when you save.

Can I edit large PDFs?

It depends on your device and the PDF. Close other tabs and keep the original file when working with large PDFs.

Can I use it on a phone?

The page is designed for touch-enabled browsers. A computer is recommended for complex edits or large PDFs.

About this PDF Editor

PDFium runs as JavaScript/WASM in your browser so PDFs can be viewed, edited, and saved on your device without uploading them. The editor supports Japanese text and Redaction that removes selected content from the PDF.

Quick fixes

Make small edits in your browser without installing desktop software or sending a PDF to an external service.

Good for

Add dates, names, or notes; correct a typo; or remove selected text or images from a PDF.

Not for major revisions

This editor is not suited to rewriting long documents, changing layouts across pages, or rearranging pages. Use the source document or a full PDF editor for those tasks.

Third-party components and licenses are listed in NOTICE. NOTICE

Handwritten signature

Confirm deletion and save