Maps in Photoshop: Creating Art Posters from OpenStreetMap

Maps as Art

Maps have long transcended their navigational purpose. Stylized city maps have become a full-fledged direction in interior design, gift products, and art prints. A black-and-white map of Paris on a living room wall, a neon Tokyo map in a bar, a minimalist map of your hometown in a frame -- this trend shows no signs of fading.

Adobe Photoshop is the perfect tool for creating such art posters. Unlike vector editors, Photoshop allows working with textures, gradients, glows, grain, and other effects that transform a map into a work of art.

Why PSD, Not SVG

SVG and AI are vector formats, ideal for printing without quality loss. But for art processing, Photoshop needs a raster or layered file:

PSD preserves the map with layers: buildings, roads, water, greenery -- each on a separate layer. This gives maximum control during processing.

Workflow: From OSM to Art Poster

Step 1: Export the Map

Open osm2cdr.ru and select a city or district. In export settings:

• Format: PSD (with layers) or PNG (if a single layer is sufficient)
• Style: choose based on your desired result:
• Dark -- for dark posters (white lines on black background)
• Minimal -- for a clean base (black lines on white)
• Neon -- for cyberpunk style
• Blueprint -- for technical drawing style
• Detail: high (maximum detail needed for A3/A2 printing)
• Size: larger is better (A2 print needs at least 300 DPI)

Step 2: Document Setup

Open the PSD in Photoshop. If the file is raster (PNG), create a new document at the required size:

For A3 print (297x420 mm):

File > New
Width: 297 mm
Height: 420 mm (portrait orientation)
Resolution: 300 DPI
Color Mode: CMYK (for print) or RGB (for screen)

For A2 print (420x594 mm):

Width: 420 mm
Height: 594 mm
Resolution: 300 DPI

Place the map in the document: File > Place Embedded > select file.

Step 3: Working with Layers

If the file is PSD, you'll see the layer structure:

├── labels          -- labels
├── buildings       -- buildings
├── roads           -- roads
├── water           -- water
├── green           -- greenery
└── Background      -- background

Each layer can be processed independently. This is the key advantage of PSD over flat PNG.

Step 4: Color Grading

Dark Poster (Popular Style)

1. Create a black fill layer (Layer > New Fill Layer > Solid Color > #000000) and place it at the bottom
2. For roads: double-click layer > Color Overlay > white (#FFFFFF) or gold (#D4AF37)
3. For buildings: Color Overlay > dark gray (#333333) or semi-transparent white
4. For water: Color Overlay > dark blue (#1A2A4A)

Minimalist Poster

1. Background -- pure white (#FFFFFF)
2. All lines -- black (#000000)
3. Water -- light blue (#D4E6F1)
4. Greenery -- disabled (hide layer)
5. Buildings -- light gray (#EEEEEE)

Neon Poster

1. Background -- dark blue (#0A0A2E)
2. Roads -- cyan glow (Outer Glow: #00FFFF, Size 10px)
3. Buildings -- purple glow (Outer Glow: #FF00FF, Size 5px)
4. Water -- green glow (#00FF88)

Step 5: Effects and Textures

Film Grain

Adds an analog feel:

Filter > Noise > Add Noise > Amount: 2-4%, Gaussian, Monochromatic

Or via Camera Raw Filter for finer control:

Filter > Camera Raw Filter > Effects > Grain > Amount: 15-25

Vignette

Darkening edges focuses the eye on the map center:

Layer > New Adjustment Layer > Gradient Fill
Style: Radial, black to transparent, Scale: 150%
Blend Mode: Multiply, Opacity: 30-50%

Paper Texture

For a textured paper print effect: 1. Find a paper texture (kraft paper, watercolor paper) 2. Place above the map 3. Blend Mode: Multiply (for dark textures) or Soft Light (for light ones) 4. Opacity: 15-30%

Gradient Toning

For a duotone effect:

Layer > New Adjustment Layer > Gradient Map
Choose gradient: dark blue → gold
Blend Mode: Normal or Color
Opacity: 60-80%

Step 6: Typography

Every art poster needs a title.

City name: 1. Type tool (T) 2. Font: geometric sans-serif (Montserrat, Futura, Gotham) 3. Size: 72-120pt for A3 4. Tracking: 200-400 (spaced out for elegance) 5. Position: top or bottom of the poster

Coordinates: Add geographic coordinates in small type:

55.7558 N, 37.6173 E

Font: monospaced (Courier, JetBrains Mono), size 14-18pt.

Additional text: Year, tagline, memorable date. Small font, subtle placement.

Step 7: Print Preparation

Size and Resolution

Ensure sufficient resolution:

Image > Image Size

For quality printing: minimum 200 DPI, optimal 300 DPI. For photo lab printing: 300 DPI mandatory.

Color Profile

For print shops:

Edit > Convert to Profile > CMYK: ISO Coated v2 (or shop's profile)

For photo printing:

sRGB IEC61966-2.1 (photo lab standard)

Soft Proofing

Check how the result will look:

View > Proof Setup > Custom > select profile
View > Proof Colors (Ctrl+Y)

Pay attention to saturated colors -- they may become dull when converting to CMYK.

Export

For print shops:

File > Save As > TIFF
Compression: LZW (lossless)
Depth: 8 bit/channel
Profile: embed CMYK profile

For print-on-demand (Printful, Redbubble):

File > Export > Export As > PNG
Resolution: 300 DPI
Color: sRGB

For social media:

File > Export > Save for Web
Format: JPEG, Quality: 80-90
Resize: 2000px on the long side

Art Poster Ideas

Hometown Map

The most popular option. Dark background, white lines, city name in large font. A great gift for friends and family.

Travel Map

A map of the city where you spent your vacation. Add markers for places you visited and your walking route.

Wedding Map

A map of the wedding venue (or where the couple first met). Elegant styling with the date and names.

City Series

A set of 3-4 posters in a unified style: Moscow, Berlin, Tokyo, New York. Consistent color palette, size, and typography.

Heart-Shaped Map

Use a heart-shaped mask (Layer > Layer Mask > clip to shape) for a romantic gift.

Tips for Selling Art Prints

If you create maps for sale:

1. OpenStreetMap license. OSM data is available under the ODbL license. For commercial use: attribution to "OpenStreetMap contributors" is mandatory.

2. Unique style. The map poster market is competitive. Find your style: watercolor textures, isometric views, minimalism with gold foil.

3. Platforms. Etsy, Redbubble, Society6 for international sales. Local marketplaces for your region.

4. Sizes. Offer A4, A3, and A2. A3 is the most popular for interior posters.

5. Mockups. Show the poster in an interior setting. A Photoshop mockup with a frame on a wall increases sales 2-3x.

A city map is not just a navigation tool. In the hands of a designer with Photoshop, it becomes a unique work of art, a personal gift, or a marketplace product.