Everything You Need in a PDF Tool

Fast, lightweight, no internet required — now with even more

⚡

Blazing Fast Open

Memory-mapped loading opens 900MB files in 1–2 seconds with minimal RAM usage.

🔗

Merge — Bookmarks Kept

Combine PDFs in any order. Every file's bookmarks are preserved and remapped to the right pages; pages without one get a clean "Page N" entry — just like Adobe.

➕

Insert Pages New

Adobe-style insert straight from the thumbnail sidebar — pull pages from another PDF in before or after any page. No drag-and-drop needed.

✂️

Extract & Split

Ctrl/Shift-select pages to extract, or split every page into numbered files (001, 0001 for large sets) with bookmark titles in the name.

📜

Continuous Scroll New

All pages in one stream, now memory-efficient — off-screen pages are released so even 300-page drawing sets stay light on RAM.

🖼

Crisp Mixed-Size Pages New

Merged files with mixed sheet sizes — documents and large A0–A3 drawings — now render sharp and correctly laid out at every zoom level.

🌐

Instant Translate

Hold Ctrl and drag over any text to translate it in place — works in single and continuous modes, with smart caching.

✍️

Digital Signature

Sign documents with your certificate (.pfx/.p12) — PKCS#7 detached, SHA-256. (Windows build)

⌨️

Shortcuts & Help New

Press F1 or the Help button for the full list of keyboard shortcuts and mouse gestures. Dark mode included, with crisp readable controls.

See TorReader PDF in action

Feature highlights and how TorReader PDF compares with 24 other PDF apps across 11 everyday jobs

Tool	Free	OSS	Port	Off	CAD	Merge	Split	Sign	Mark	Tr	Lnx	OCR
Commercial
ABBYY FineReader PDF	○	○	○	●	◐	●	●	●	●	○	◐	●
Adobe Acrobat Pro	○	○	○	●	◐	●	●	●	●	○	○	●
Bluebeam Revu	○	○	○	●	●	●	◐	●	●	○	○	●
Foxit PDF Editor	○	○	○	●	◐	●	●	●	●	○	◐	●
Kofax Power PDF	○	○	○	●	◐	●	●	●	●	○	◐	●
Nitro PDF Pro	○	○	○	●	◐	●	●	●	●	○	○	●
PDF-XChange Editor	◐	○	◐	●	●	●	●	●	●	○	○	●
Wondershare PDFelement	○	○	○	●	◐	●	●	●	●	◐	◐	●
Open-source
Evince / GNOME	●	●	○	●	◐	○	○	○	◐	○	◐	○
MuPDF	●	●	●	●	●	◐	◐	○	○	○	●	○
Okular (KDE)	●	●	◐	●	◐	○	○	◐	●	○	●	○
Qoppa Studio Viewer	●	○	○	●	◐	○	○	◐	●	○	●	○
Sumatra PDF	●	●	●	●	●	○	○	○	○	○	○	○
TorReader PDF	●	●	●	●	●	●	●	●	●	●	●	●
Xodo PDF	●	○	○	◐	◐	●	●	●	●	○	◐	◐
Self-hosted
PDF Arranger	●	●	◐	●	○	●	●	○	○	○	◐	○
pdfcpu	●	●	●	●	◐	●	●	◐	○	○	●	○
PDFsam Basic	●	●	◐	●	◐	●	●	○	○	○	●	○
Stirling-PDF	●	●	◐	●	◐	●	●	●	◐	○	●	●
Web
Chrome / Edge	●	◐	○	●	◐	○	○	○	◐	○	●	○
iLovePDF	◐	○	○	○	◐	●	●	●	◐	○	●	◐
PDF24 Tools	●	○	◐	◐	◐	●	●	●	◐	○	◐	●
Sejda	◐	○	○	◐	◐	●	●	●	●	○	●	◐
Smallpdf	◐	○	○	○	◐	●	●	●	◐	○	●	◐

Port = portable · Off = works offline · CAD = opens large CAD/A0 · Mark = markup · Tr = translate · Lnx = Windows + Linux.
● full · ◐ partial or paid-tier only · ○ not available — general positioning as of 2026; feature sets vary by version.

Comment text on every markup in TorReader PDF 2.4

New in 2.4 — every markup carries popup text, typed inline in the Comments list · View full size ↗

The TorReader Family

One brand, focused tools

📄

TorReader PDF Available

The fast, portable PDF reader, merger and splitter for Windows & Linux. View, edit, translate and sign — no installation.

Download Free

🤖

TorReader AI Coming Soon

An AI copilot for technical drawings and documents — ask questions, extract objects and properties, and check your sheets. In the works.

Learn More

Download Free

Official downloads only. TorReader PDF is published in exactly two places — this site (torreader.cloud) and GitHub Releases. Anything else is not ours. If a page calls itself an “official releases page” but offers a generic archive such as Application-2.5.zip, it is not this app, whatever it is named. Genuine files always carry the product name and version: TorReaderPDF-2.4.0-win64.zip · torreader_2.4.0_amd64.deb · TorReaderPDF-2.4.0-x86_64.AppImage.

Windows 10 / 11

Portable .zip · ~70MB · 64-bit

⬇ Download TorReaderPDF-2.4.0-win64.zip

Download the .zip file
Right-click the .zip → Properties → tick Unblock → OK
Extract to any folder
Run TorReader.exe

# if Windows warns "Windows protected your PC": # unblock the .zip first, then extract — or in PowerShell: Unblock-File .\TorReaderPDF-2.4.0-win64.zip

🐧

Linux (Ubuntu 22.04+)

APT repo · .deb · AppImage · 64-bit

APT repository (recommended): automatic updates

sudo apt install torreader

After adding the repo — see full Linux install guide →

⬇ Download AppImage (~79 MB)

Also: .deb package · Source on GitHub

Tips & Guides

What's New: TorReader PDF 2.3

GPU-powered vector rendering keeps lines crisp on zoom and pan for heavy CAD drawings — in both single-page and continuous scroll — and every markup type can now attach a text note, inline in the Comments list.

Release notes →

How to Merge PDF Files Without Uploading to the Cloud

Keep bookmarks intact, stay offline, no file size limits.

What Is a Portable App? Why You Should Use One for PDF

Benefits of portable software and when to choose it.

TorReader PDF vs Adobe Acrobat Reader — Which Is Faster?

An honest comparison for engineers and architects.

How to Extract PDF Pages While Keeping Bookmarks

Pull out exactly the pages you need without losing the table of contents.

TorReader PDF for Engineers & Architects — Workflow Guide

Opening large drawings, continuous scroll, and merging project files.

PDF Reader That Runs
Without Installing

Everything You Need in a PDF Tool

Blazing Fast Open

Merge — Bookmarks Kept

Insert Pages New

Extract & Split

Continuous Scroll New

Crisp Mixed-Size Pages New

Instant Translate

Digital Signature

Shortcuts & Help New

See TorReader PDF in action

The TorReader Family

TorReader PDF Available

TorReader AI Coming Soon

Download Free

Windows 10 / 11

Linux (Ubuntu 22.04+)

Tips & Guides

What's New: TorReader PDF 2.3

How to Merge PDF Files Without Uploading to the Cloud

What Is a Portable App? Why You Should Use One for PDF

TorReader PDF vs Adobe Acrobat Reader — Which Is Faster?

How to Extract PDF Pages While Keeping Bookmarks

TorReader PDF for Engineers & Architects — Workflow Guide

Feedback & Contact

PDF Reader That RunsWithout Installing

Everything You Need in a PDF Tool

Blazing Fast Open

Merge — Bookmarks Kept

Insert Pages New

Extract & Split

Continuous Scroll New

Crisp Mixed-Size Pages New

Instant Translate

Digital Signature

Shortcuts & Help New

See TorReader PDF in action

The TorReader Family

TorReader PDF Available

TorReader AI Coming Soon

Download Free

Windows 10 / 11

Linux (Ubuntu 22.04+)

Tips & Guides

What's New: TorReader PDF 2.3

How to Merge PDF Files Without Uploading to the Cloud

What Is a Portable App? Why You Should Use One for PDF

TorReader PDF vs Adobe Acrobat Reader — Which Is Faster?

How to Extract PDF Pages While Keeping Bookmarks

TorReader PDF for Engineers & Architects — Workflow Guide

Feedback & Contact

PDF Reader That Runs
Without Installing