This article provides lists of manuals available in PDF format.

System 7 Manuals

How to Install System 7
Follow the instructions in this booklet to install the latest version of Macintosh system software on your computer's hard disk.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/HowToInstallSystem7.pdf

System 7 Information
Tech Specs
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/System7Information.pdf

System 7
Tune-Up
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0302605System7TuneUp.pdf

System 7
Macintosh Reference
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/MacReferenceSystem7.pdf

System 7 Pro
Multipack HandBook
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/System7ProMultipackHB.pdf

System 7.1
Update Guide
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0302799Sys71UpdateGuide.pdf

Macintosh System 7.5
Upgrade Guide
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0307163ASYS75UPG.PDF

Macintosh System 7.5
Group Upgrade HandBook
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0305759AMOS75UGHBK.PDF

Macintosh System 7.5
Upgrade Manual
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/96608001AMOS7.5UPGUM.PDF

System 7.5 and System 7.5 Update
Installing Your New Software
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0307557AMOS7.5&UDIG.PDF

System 7.5.5 Update
This document gives you late-breaking news about installing System 7.5.5
Update. Follow the instructions here to make installing System 7.5.5 Update as smooth as possible.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/U96501036AMMOS7.5.5UD.PDF

Mac OS 7.6
With Mac OS 7.6, your computer will perform better and more reliably.
You can also take advantage of new features that enhance your computer's
networking, multimedia, printing, and other capabilities.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/U96609036AMOS7.6IM.PDF

Installing Mac OS 7.6.1
On Power Macintosh computers
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0330496AMOS761PM.PDF

About Your Computer's System Software
The new features of Mac OS 7.6.1 make it easier to connect to the Internet, enhance your computer's multimedia capabilities, and increase your productivity. This document describes some of the most recent advances.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0330544A7.6.1SWAD.PDF

Mac OS 7.6.1 Software Update
New features and reinstallation procedures. Use this manual along with your owner's manual.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0340231AOS761SWUD.PDF

System 8 Manuals

Mac OS 8
User's Manual-with Mac OS 8, it has never been easier to install, configure, and manage your system.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/U97609001AMOS8II.PDF

Mac OS 8
Additions and enhancements
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0330609AMOS8UDAD.PDF

Mac OS 8.1
With the Mac OS Standard format, space is divided into storage blocks that are all the same size.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0330901AMAC0S81UD.PDF

Mac OS 8.5
Installation Manual
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0340643MOS85IM.PDF

About Mac OS 8.5
This document provides information about Mac OS 8.5 that supplements the information in your installation manual and on-line help.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/About8.5.pdf

Mac OS 8.6
Installation Manual
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/LL0851OS.pdf

Mac OS 8.6 Installation Manual
Note: You cannot use this version of the Mac OS if your computer has been upgraded with a PowerPC processor card but still has a 68040 (or earlier) processor that is accessed during startup.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0340851AMACOS86IM.PDF

Mac OS 9 Manuals

Installing Mac OS 9
User Guide for Installing and Setting Up Mac OS 9
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0340894AMACOS9.PDF

Miscellaneous OS Manuals

Macintosh System Software
Macintosh System Software Liscense Agreement
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0330664AMOSSLICACDCD.PDF

Emergency Handbook
The Emergency Handbook includes troubleshooting, hard disk repair, and software installation information. It is highly recommended for all Macintosh users.
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0340292AEMRGNCYHNDBK.PDF

Macintosh PowerBook
Reinstalling System Software
ftp://manuals.info.apple.com/Apple_Support_Area/Manuals/mac_os/0308992AREIPBSYSSW.PDF