Bitmap | Viewer Esko

When a packaging design is approved, it exists as a vector PDF or an ArtPro file. However, a printing press cannot print continuous vector gradients; it prints microscopic dots of ink. The process of converting vector artwork into these halftone dots is called rasterization or RIPing (typically handled by Esko’s or FlexoProof ).

Integrating Bitmap Viewer into a prepress workflow yields immediate operational advantages:

But none match Esko Bitmap Viewer for integration.

By default, bitmaps are shown as black dots on white. For detection issues, change the display to "White dots on black" or use false colors (e.g., show Cyan as a translucent blue overlay). bitmap viewer esko

The tool allows you to compare two different versions of a file. If you have updated a design, you can overlay the new bitmap on top of the old one to highlight every single pixel change. This ensures no unintended elements were moved or deleted during the revision. 3. Moire Prediction

In flexo, tiny dots in highlight areas can bend or fail to ink properly if they are too small. Prepress operators use the viewer to verify that the RIP’s surface screening technologies (like Esko HD Flexo or Crystal Screening) have correctly applied micro-cells or anchoring dots to support these highlights.

: It allows for the measurement of minimum dot sizes and dot gain, ensuring highlights and shadows will print correctly. When a packaging design is approved, it exists

One of the most powerful features of Bitmap Viewer is its ability to compare two files. If a file is revised, operators can overlay the old bitmap with the new one. The software highlights any differences in pixels, text, or dot structures in a contrasting color, ensuring no accidental changes were introduced during the revision process. 5. Moire Simulation

The defining feature of the Bitmap Viewer is its ability to render data at a 1:1 pixel ratio and zoom in to extreme magnifications without interpolation.

The software provides a comprehensive suite of inspection tools tailored for high-end printing, particularly flexography: Integrating Bitmap Viewer into a prepress workflow yields

Esko’s bitmap viewing capabilities are uniquely tailored to packaging. Unlike general image viewers, these tools are built to handle file packages containing dozens of spot colors and incredibly dense raster data. 1. Accurate Multi-Channel Separation Viewing

: Primarily runs on Windows , though specialized versions or licenses (like DotSpy) may allow for Mac usage.

: Often provided through Esko Automation Engine or as part of the Imaging Engine installer.

Use the Snapshot feature to save a view (e.g., "3% dot in Cyan.png") for your quality report. If using Automation Engine, you can export a Bitmap Viewer report automatically as part of a Proof of Concept (PoC).