PDF Blueprint Effect
Give drawings and scanned pages a blueprint appearance with a blue background and white lines. Adjust contrast-related settings and output resolution to suit the document.
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Blueprint Effect
📌 How it works:
⚠️ This rasterizes vector PDFs into images, making text unselectable. Intended for scanned documents.
1️⃣ Open a PDF to give every page a blueprint effect (white lines on a blue background).
2️⃣ Automatically adapts to color scans, grayscale drawings and black-and-white line art.
3️⃣ Adjust the blue background depth and line brightness for the best result.
4️⃣ Optionally use Sharpen to enhance blurred drawings.
⚠️ Conversion creates image-only pages, so text cannot be selected or searched.
⚠️ This rasterizes vector PDFs into images, making text unselectable. Intended for scanned documents.
1️⃣ Open a PDF to give every page a blueprint effect (white lines on a blue background).
2️⃣ Automatically adapts to color scans, grayscale drawings and black-and-white line art.
3️⃣ Adjust the blue background depth and line brightness for the best result.
4️⃣ Optionally use Sharpen to enhance blurred drawings.
⚠️ Conversion creates image-only pages, so text cannot be selected or searched.
Click or drop a local PDF
Create Blueprints with White Lines on Blue
Background Depth60
line brightness80
Resolution💡 DPI = scale × 72. For engineering drawings, use 4× or higher for sharper linesFor large drawings such as A0, 10× or 12× may render slowly and use substantial memory.
🟦 Blueprint Preview
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A preview appears after you open a PDF
How to use this tool
- Open a PDF containing the drawings or pages to convert.
- Adjust blue background depth and line brightness, and optionally enable sharpening.
- Choose the rendering resolution and inspect the blueprint preview.
- Click Create Blueprints and Save.
Frequently asked questions
Can I use color scans and grayscale drawings?
Yes. The tool adapts color scans, grayscale drawings and black-and-white line art to the blue-background, white-line effect.
How should I choose the output resolution?
DPI equals the scale factor multiplied by 72. Higher scales can make drawing lines sharper, but large pages at 10× or 12× can be slow and use more memory.