indox.org
  • Convert Tools
  • Pricing
  • Blog
  • Support
  • Docs
Ctrl K
Get started
Indox

Encrypted in transit. Free-tier files auto-deleted within 24 hours. No tracking.

  • Encrypted in transit
  • Auto-delete within 24h
  • No training on your files

Convert documents

  • DOCX to PDF
  • PDF to DOCX
  • XLSX to PDF
  • PDF to JPG
  • EPUB to PDF
  • XLSX to CSV
  • HTML to PDF

Convert images

  • HEIC to JPG
  • JPG to PDF
  • AVIF to JPG
  • WEBP to JPG
  • SVG to PNG
  • JPG to PNG

Convert video and audio

  • AVI to MP4
  • WAV to MP3
  • MOV to MP4
  • M4A to MP3
  • MKV to MP4
  • MP4 to MP3
  • WEBM to MP4
  • OGG to MP3

Tools

  • Convert
  • Edit
  • Organize
  • Sign & secure
  • Compress & repair
  • AI
  • PDF converter
  • All conversions

Apps

  • AI Extract
  • Chat with a doc
  • Translate documents
  • Office
  • Form reader
  • Fill & Sign
  • PDF viewer
  • Scan to PDF
  • Unit converter

Font formats

  • TTF
  • OTF
  • WOFF
  • WOFF2
  • EOT
  • SVG
  • PFA
  • PFB

Company

  • Blog
  • Pricing
  • Support
  • Feedback
  • Terms of Use
  • Privacy Policy

IRS forms for individuals

  • Individual income tax
  • Payments, refunds & disputes
  • Tax pros & free filing help
  • IRS notices & requests
  • Records, IDs & e-file
  • Estates, gifts & trusts
  • Retirement & savings plans

IRS forms for businesses

  • Employment & payroll
  • 1099s & information returns
  • Business & corporations
  • Charities & nonprofits
  • Excise tax
  • International

USCIS family and status

  • Green cards
  • Citizenship
  • Family petitions
  • Adoption
  • Travel & status changes
  • Asylum & humanitarian relief

USCIS work and filings

  • Work authorization
  • Investors & entrepreneurs
  • Records & requests
  • Fees & payments
  • Waivers
  • Appeals & motions

Developers

  • Documentation
  • API Reference
  • Python SDK

Products

  • Businesses
  • IndoxHub
  • Pencilly

Apps and extensions

  • WebEase (Extension)
  • AI Summarizer (Extension)
  • KeyNest (Extension)
  • KeyNest (Android App)

© 2026 Nemati AI LLC. All rights reserved.

Private. Secure. Encrypted. Auto-deleted within 24 hours.

Updated on 2026-10-13, v0.26.0

Open a PDF and read it in your browser

Open a PDF

Drag a file here, or browse to render it right in your browser.

Stays on your device. Nothing is uploaded.

Rendered locally in your browser. Applying annotations uploads the file.

  1. Home
  2. Tools
  3. PDF Viewer

Free online PDF viewer

A PDF viewer opens a PDF so you can read it without installing anything. indox draws the pages in your browser and gives you page thumbnails, an outline, zoom presets and a go-to-page box. Open a file from your device, move through it, then download it or hand it to Doc Chat or AI Extract. Viewing happens locally in your browser, and only applying notes uploads the file.

Why use indox to view a PDF?

Jump to any page

Jump to any page

Page thumbnails and the document outline sit beside the page. Click a thumbnail or an outline entry, or type a page number in the go-to box.

Zoom to suit the page

Zoom to suit the page

Zoom in or out, pick a preset, or fit the page to the width of the window.

Add notes to a page

Add notes to a page

Turn on Add note, click the page and type your comment. When you are done, apply the notes to get a new PDF that includes them. Applying notes uploads the file.

Use the PDF somewhere else

Use the PDF somewhere else

The Use this PDF menu sends the file to Doc Chat or AI Extract. You can also download it, share it or open another PDF.

How do I view a PDF online?

  1. 1

    Open your PDF

    Drop the file on the viewer or choose it from your device.

  2. 2

    Read and move around

    Use thumbnails, the outline, zoom presets or the go-to box to find what you need.

  3. 3

    Download, share or use it

    Save the PDF, share it, or send it to Doc Chat or AI Extract from the Use this PDF menu.

What do I get from indox's PDF viewer?

The viewer draws your pages in the browser, so you can read a document before you decide what to do with it.

  • Pages are drawn locally in your browser
  • Thumbnails and an outline help in long documents
  • Zoom presets and fit to width
  • Sticky notes you can apply to a new PDF
  • Hand off to Doc Chat or AI Extract in one step
What do I get from indox's PDF viewer?

Who can use an online PDF viewer?

  • People reading long reports

    People reading long reports

    Jump between sections with the outline instead of scrolling.

  • Reviewers leaving notes

    Reviewers leaving notes

    Mark a page with a note and keep the commented copy.

  • Anyone checking a file before sharing

    Anyone checking a file before sharing

    Look at a PDF first, then download it or send it on.

PDF viewer FAQs

Is my PDF uploaded when I open it?

No. The pages are drawn locally in your browser. A file is uploaded only when you apply notes to it.

Can I add comments to a PDF?

Yes. Turn on Add note, click the page and type your comment. Applying the notes creates a new PDF that includes them.

How do I jump to a page?

Click a page thumbnail or an outline entry, or type a page number in the go-to box.

Can I zoom in and out?

Yes. Zoom in or out, choose a preset, or fit the page to the width of the window.

What if my PDF has no outline?

The viewer says the document has no outline, and the page thumbnails still work.

Can I download the PDF?

Yes. Use Download in the toolbar once a PDF is open.

Can I ask questions about the PDF?

Yes. Open the Use this PDF menu and choose Ask Doc Chat.

Does it work on a phone?

Yes. On a phone the page list opens from the title bar, and the page controls sit in a toolbar at the bottom.

Do I need an account?

You can open and read a PDF without signing in.

Is the PDF viewer free?

Viewing is free. Paid plans add volume and larger files for the rest of indox.

What can I do with this PDF next?

Doc Chat answers questions about the PDF you have open, so you can find what you need without reading every page.

  • Chat with a doc

    Ask questions about a document.

  • AI Extract

    Pull structured data out of a document.

  • PDF to Word

    Turn a PDF into an editable document.

  • Compress PDF

    Shrink a PDF before you send it.

Related tools

  • Rotate Pages
  • Merge PDF
  • Split PDF
  • Protect PDF
  • All PDF tools
What can I do with this PDF next?

Where can I read more about indox?

  • Docs

    Convert a file with the API

    Authenticate, start a conversion, poll its status and download the result.

  • Docs

    Document formats

    Format families, and how to check one pair before you convert.

  • Docs

    Limits

    File size, credits and retention for free and paid use.

  • Docs

    Document Conversion API

    Submit a file, poll the job, download it and list past conversions.

Do it all with indox

View all 123 tools

No tool matches that search.

Sign & secure

  • Sign PDF
  • Protect PDF
  • Unlock PDF
  • Redact PDF
  • Watermark PDF
  • Redact Text
  • Sanitize PDF
  • Certificate Sign
  • Remove Signature
  • Unlock Forms
  • Timestamp PDF
  • Change Permissions

Convert

  • PDF to Word
  • Word to PDF
  • PDF to Excel
  • PDF to JPG
  • JPG to PDF
  • Excel to PDF
  • PDF to PowerPoint
  • PowerPoint to PDF
  • PDF to CSV
  • PDF to HTML
  • Markdown to PDF
  • PDF to Markdown
  • HTML to PDF
  • PDF to Text
  • Text to PDF
  • PDF to JSON
  • JSON to PDF
  • PDF to EPUB
  • EPUB to PDF
  • Email to PDF
  • RTF to PDF
  • ODT to PDF
  • PDF to XML
  • PDF to PDF/A
  • PDF to Video
  • HEIC to JPG
  • SVG to PNG
  • CSV to Excel
  • JSON to CSV
  • PDF to EPS
  • EPS to PDF
  • PDF to PS
  • PS to PDF

Edit

  • Edit PDF
  • Fill PDF Form
  • Add Stamp
  • Edit PDF Metadata
  • Flatten PDF
  • Add / Extract Images
  • Remove Annotations
  • Adjust Contrast
  • Invert Colors
  • Replace Colors
  • Get PDF Info
  • Add Attachments
  • Show JavaScript
  • Analyze PDF
  • List Attachments
  • Extract Attachments
  • Rename Attachment
  • Delete Attachment
  • Remove Images

Organize

  • Merge PDF
  • Split PDF
  • Rotate Pages
  • Reorder Pages
  • Remove Pages
  • Extract Bookmarks
  • Single Long Page
  • Scale Pages
  • N-up Layout
  • Booklet
  • Add Page Numbers
  • Crop PDF
  • Extract Pages
  • Edit Table of Contents

Compress & repair

  • Check PDF
  • Compress PDF
  • OCR PDF
  • Repair PDF
  • Decompress PDF
  • Compare PDFs
  • Auto Rename
  • Scanner Effect
  • Pipeline
  • Multi-Tool
  • Read & Annotate

AI

  • AI Extract
  • Chat with a doc
  • Translate documents

Apps

  • Office
  • Form reader
  • Fill & Sign
  • PDF viewer
  • Scan to PDF
  • Unit converter

Image

  • Compress Image
  • Resize Image
  • Crop Image
  • Convert Image
  • Remove Background
  • Upscale Image
  • Watermark Image
  • Rotate & Flip
  • Image to Base64
  • Remove EXIF

Video

  • Convert Video
  • Compress Video
  • Trim Video
  • Video to GIF
  • Extract Audio
  • Add Subtitles
  • Video Thumbnail
  • GIF to MP4

Audio

  • Convert Audio
  • Compress Audio
  • Trim Audio
  • Merge Audio
  • Audio to Text
  • Change Speed
  • Normalize Audio
  • Record Audio

Fonts

  • Font Converter
  • TTF to WOFF2
  • OTF to WOFF2
  • WOFF to WOFF2
  • TTF to OTF
  • OTF to TTF
  • WOFF2 to TTF

What do the free and paid plans add?

Free

  • All converters
  • Daily credit refresh
  • Email support

Basic

  • Access to all features
  • AI Extract & Doc Chat
  • Priority conversions
  • Email support
Highest priority

Premium

  • Everything in Basic
  • Highest priority queue
  • Larger file limits
  • Priority support

Pay-As-You-Go

  • No subscription
  • Credits never expire
  • Opt-in auto-refill
  • Access to all features
See prices