I have created this thread as a vehicle to use to readily make available any and all tutorials here that have been packaged in a PDF format. This first post will contain links to PDF tutorials written exclusively for GIMP or Photoshop:
EDIT: Post #1's tutorial links have all been updated and now point to the appropriate tutorial.
Vandy, 1 MAY 2016
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GIMP-RELATED TUTORIALS
Fast and Easy Artistic Maps in the GIMP
Original tutorial and PDF document by darklingrisen
Antique Style Maps in Gimp
Original tutorial by Ascension
PDF tutorial created by Candacis
Ascension's Atlas Tutorial in GIMP (Gidde)
Original tutorial by Ascension
PDF Tutorial created by Giide
Hand-Drawn Mapping (for the Artistically Challenged) - Fix Edited in by JMcKid
Brushes Needed For Tutorial
brushes.zip
Original tutorial by Giide
Textured Forests in GIMP
Original tutorial by Gidde
Photo-Realistic Forests in GIMP
Forest and Tree Patterns Needed for Tutorial
Forests Patterns.zip
Tree Patterns.zip
Original tutorial by Arsheesh
Making Map Borders in GIMP
GIMP Layer Effects
Slate Pattern
Original tutorial by Arsheesh
Turning Maps into Globes in GIMP
Original tutorial by Arsheesh
Simple Mountains in GIMP
Original tutorial by RobA
Creating Old Paper / Parchment in GIMP
Original tutorial and PDF document by RobA
How to Blend Textures for Use in Battlempping with GIMP
Original tutorial by Geamon
How to Add Snow, Dirt, Sand and Other Granular Textures for Use In GIMP
Original tutorial by Geamon
Yet Another Mountain Tutorial Using GIMP
Additional File Needed for Tutorial
kjdavies-mountain-tutorial-xcf.zip
Original tutorial by kjdavies
Using GIMP's Mosaic Filter to Create Towns
Original tutorial by Torstan
How To Create A Tiled Roof Pattern in GIMP
Original tutorial by MSZ.
Making Water in GIMP with a Soft Edge
Original tutorial by joćo paulo
Gas Planet Tutorial in GIMP
Original tutorial by JCRL
PHOTOSHOP-RELATED TUTORIALS
Textured Mountains in Photoshop
Original Tutorial by Steel General
Town Map Tutorial
Bison Texture from Spiral Graphics
Original tutorial by Larb
Creating A Medieval Town Map In Photoshop
Original tutorial by pyrandon
Fastest town in the west
Original tutorial by Ascension
How to Create a House Brush in Photoshop
Original tutorial by Ascension
Using Photoshop to Create Clustered Houses
Original tutorial by Ascension
Antique Style Maps in Photoshop
Original tutorial by Ascension
Making Atlas Style Maps in Photoshop
Original tutorial by Ascension
Saderan - A Tutorial
Original tutorial by Tear
Quick Guide for Bumpmaps in Photoshop
Original tutorial by Pasis
Creating Mountains and Other Terrains in Photoshop v1.5
Original tutorial by Pasis
Working with textures - Quick Photoshop Guide
Textures for use with tutorial
Original tutorial by Pasis
Making Maps with Photoshop
...a series of tutorials by jezelf
Turning your hand drawn sketch into a detailed alpha map (map01)
A Basic Alpha Map (map02)
Aged, Parchment with a creation method for mountain ranges, trees and trails (map03)
One of many options to colour your map (map04)
Four ways to give your map a relief using height maps - using Wilbur for one of them (map05)
Original tutorial by jezelf
Sketch Style World Map in Photoshop CS
Coast Brush (PNG Graphic)
Original tutorial by Moe
Photoshop Mapping with Chuck
Additional Material for Tutorial
Wilbur 32 Bit, Version 1.83
Wilbur32_Setup-1.83.zip
Wilbur 64 Bit, Version 1.83
Wilbur64_Setup-1.83.zip
Making Maps Using Photoshop (jezelf)
Fun with Wilbur, Volume 1
Original tutorial by overlordchuck
How to Blend Two Textures Using the Mask Tool in Photoshop
Original tutorial by Yospeck
Creating Stair Shadows in Photoshop
Original tutorial by anomiecoalition
Quick and Dirty Beach Layer Effects
Original tutorial by Blake
Hand-Drawn Mountain and Tree Map Elements using Photoshop or GIMP
Brushes made by Nomadic for use in tutorial
MountainBrushes.zip
Trees.zip
Original tutorial by ironmetal250
How to make Non-Destructive Textured Maps in Photoshop
Original tutorial by ravells
Easy Nebula Background
Cloud Image #1
Cloud Image #2
Original tutorial by kimey
Realistic Land / Mountain Texture Made Easy
Original tutorial by Flawedspirit
PDF Tutorial created by arakish
Creating Realistic Coastlines in Photoshop
PDF Tutorial created by jelmore
Original tutorial by OldGuy
Realistic Coastlines Revisited by OldGuy
How to Create an Old Drawings Imitation
Original tutorial by Katto
Tutorial written by Paul, a member of forcg
The Making of Compass Rose
Original tutorial by daeVArt
Castles from Strokes
Original tutorial by J.Edward