100% local · nothing uploaded

Edit any PDF, entirely on your computer.

123 PDF Editor PRO is a full PDF workspace that runs inside your browser. Change text and images, build and fill forms, run OCR, sign, organize pages, protect and compress — all without sending a single file to a server.

Get 123 PDF Editor — Free See how it works
  • ✓ No account required
  • ✓ Works offline
  • ✓ One-time PRO, no subscription
123 PDF Editor PRO — my-document.pdf
123 PDF Editor PRO main workspace with an open PDF Processed on this device
✍️
Real text editingEdit words in place
◎
Local OCR10 languages, offline
▤
FormsFill & create fields
◆
AES-256Password protection
▦
Page toolsMerge, split, reorder
Everything a PDF needs

One editor, from first word to final signature

No more juggling six single-purpose web tools. 123 PDF Editor PRO handles the whole document lifecycle in one place.

Edit text
Editing existing text directly inside a PDF

Change the words already in your PDF

Click any paragraph and type. The editor detects the original font, size and colour so your edits blend in, with 13 bundled fonts and full formatting when you want a different look.

  • ✓ Select by word or by text block
  • ✓ Auto-matched font, size and colour
  • ✓ Bold, italic, underline, alignment and semantic styles
  • ✓ Add new text boxes anywhere on the page
Replace image
Selecting and replacing an image inside a PDF

Swap and reposition images

Select any picture in the document to move, resize or replace it with a local image — or remove it entirely. Drag the handles to fit; hold Shift for free proportions.

  • ✓ Replace with a PNG or JPG from your device
  • ✓ Move and resize with precise handles
  • ✓ Insert brand-new images, tables and signatures
Local OCR
A scanned PDF becoming editable after local OCR OCR runs offline

Turn scans into editable text — offline

The editor spots scanned pages automatically and offers to recognise them locally with a bundled OCR engine. Text becomes selectable and editable without your scan ever leaving the machine.

  • ✓ 10 built-in languages plus automatic detection
  • ✓ No cloud, no upload, no waiting in a queue
  • ✓ Recognised text stays fully editable afterwards
Protection & privacy
Password protection and privacy cleanup options

Protect, restrict and clean up

Lock the document with a password, choose exactly what readers may do, and strip hidden data before you share. Encryption happens on your device, so the password never travels anywhere.

  • ✓ AES-256 or RC4 encryption with user & owner passwords
  • ✓ Fine-grained permissions for printing, copying and editing
  • ✓ Remove metadata, JavaScript, attachments and links
Why it's different

Your documents never leave this device

Most online PDF tools upload your file to a server you can't see. 123 PDF Editor PRO does every operation — editing, OCR, encryption, signing — right inside your browser tab.

  • ✓ No uploads, no cloud storage, no third-party processing
  • ✓ Contracts, IDs and financials stay confidential by design
  • ✓ Works with no internet connection at all
  • ✓ Saved projects live only in your own browser
1
Open a PDFLoaded straight into the browser tab
▼ stays on your device
2
Edit, OCR, sign, protectAll processing happens locally
▼ stays on your device
3
Download the resultSaved directly to your computer
The full toolset

Twelve tools, one download

Each tool is built in — there is nothing extra to install and nothing to unlock beyond the free limits.

✍️

Edit text & images

Change words in place, add text boxes, and replace or remove pictures.

▤

Fill & create forms

Complete existing forms or build text fields, checkboxes, dropdowns and buttons.

◎

Local OCR

Recognise scanned pages in 10 languages without any upload.

▦

Page Organizer

Reorder, rotate, duplicate, crop and resize pages by dragging.

⧉

Merge & split

Combine multiple PDFs or extract and split pages any way you like.

✎

Signatures

Drop image signatures or apply a certificate-based digital signature.

▧

Annotations & comments

Sticky notes, highlights, shapes and review marks that stay editable.

◩

Watermarks & decoration

Add watermarks, headers, footers, page numbers and backgrounds.

◆

Protection & privacy

Encrypt with AES-256, set permissions and strip hidden data.

⇲

Compress

Shrink file size with Web, Email or Print profiles — locally.

▥

Templates & tables

Start from 16 editable page templates or insert styled tables.

⌕

Search & replace

Find text across the document and replace it in one pass.

Read the full tutorial →
Free vs PRO

Try everything, upgrade once

Every tool works in the free version. PRO simply removes the usage limits — for a single one-time payment.

 FreePRO
All editing tools✓✓
Local OCR & digital signatures✓✓
Clean PDF downloads5 totalUnlimited
Saved projects3 totalUnlimited
OCR export without the Free banner—✓
LicenceFree$24 one-time
Unlock PRO — $24 one-time

Ready to edit your first PDF?

Install the extension, open a document, and start editing in seconds — no sign-up, no upload.

Get 123 PDF Editor — Free Get PRO