Edit a PDF Online in Seconds With
Lumr's PDF Editor

Edit your PDF online in seconds with Lumr's secure, all-in-one PDF editor. Add text, images, shapes, and highlights directly on your device, with no software to download needed.

PDF

or drop your files here

Max file size 100 MB

  • No signup needed
  • Private & encrypted
  • 256-bit SSL
  • AES-256 encrypted
  • SOC 2 Type II
How it works

How to Edit a PDF in 3 Easy Steps

1

Upload your PDF

Drag and drop your file into the upload area above, or select it from your computer.

2

Make your edits

Add or update text, insert images and shapes, or highlight and annotate the page.

3

Download your edited PDF

Download your finished file, with all your changes in place.

Why lumr

The Fastest and Most Secure
PDF Editor Online

Lumr gives you the tools to edit PDF text online, mark up pages, and finish your document, all without leaving your browser.

Add and edit text

Type directly on the page

Add new text anywhere on the page, or edit text in a PDF without retyping the whole document.

Insert images and shapes

Bring in visuals easily

Drop in logos, photos, or shapes like rectangles and lines to complete or mark up your PDF.

Highlight, draw, and annotate

Mark up any document

Highlight key passages, draw freehand, or add sticky notes and comments to give feedback.

Practical and intuitive tool

No learning curve

A clear toolbar and a simple upload, edit and download process mean you don't need training to edit a PDF with Lumr.

Works on any device

Every device, one browser

Edit PDF files on Windows, macOS, Linux, Android, or iOS without extra software needed.

Secure file processing

Protected while you work

Lumr encrypts your document while you edit it, so your files stay private throughout.

Loved by users

Trusted Every Day to Edit PDF Files

See what people have to say about using Lumr's PDF editor.

“I used to dread editing PDFs. lumr makes it as simple as editing a Word doc. The conversion quality is unbelievable.”
Sarah M.

Sarah M.

Marketing Manager

“The all-in-one suite is a game changer. I can edit, sign, and convert without leaving the browser. Saved me hours every week.”
James K.

James K.

Freelance Designer

“I fill and sign contracts on my phone between showings. No printing, no scanning, just upload and done.”
Ana L.

Ana L.

Real Estate Agent

Frequently asked questions

FAQs About Our PDF Editor

Still have questions about how to edit a PDF file or edit PDF documents online? Check out the answers below.

What is a PDF editor?

A PDF editor is a tool that lets you change the content of a PDF file. Lumr's online PDF editor lets you add text, images, shapes, and annotations directly on your smartphone or computer, then download the updated file, all without special software.

Is it safe to edit my PDF documents on Lumr?

Yes, Lumr processes your document with encryption and doesn't retain your files once you've downloaded your edited PDF, so your content stays private throughout.

Do I need to install any software to use this PDF editor?

No, Lumr's PDF editor works entirely online. You only need a web browser and an internet connection, with no downloads or installations required.

Can I edit individual pages within a multi-page PDF?

You can edit PDF pages individually: navigate to any page in your document and add text, images, or annotations to that page specifically, without affecting the rest of the file.

Does the editor preserve the original resolution and formatting of the PDF?

Yes, editing a PDF with Lumr only changes the elements you add or update. The rest of your document, including images and formatting, keeps its original resolution and layout.

Can I convert the edited file to another format?

Once you've finished editing, you can convert your PDF into other formats, such as Word or JPG, using Lumr's other conversion tools.

Can I add images, shapes, and custom drawings to the PDF?

Yes, you can insert photos or logos, add shapes like rectangles and lines, or draw freehand directly onto your PDF pages to mark up or complete your document.

Is there a file size limit to use this PDF editor?

Yes, you can upload PDF files up to 100 MB. This covers the vast majority of documents, including longer reports and files with several images.

Certified & audited

Security you can trust

Independently audited and compliant with the security and privacy standards your documents demand.

  • SOC 2 Type II
  • GDPR
  • ISO 27001
  • HIPAA
  • eIDAS
  • PCI DSS

Ready to edit your PDF?

Drop your file in. Make your edits. Download. We get out of your way.

  • Ready in 3 seconds
  • 256-bit SSL secure
  • Works on any device