PDF Processing
How a print platform enhances photobook and catalogue PDFs automatically with the VIESUS PDF Enhancer — and which interface and settings fit the workflow.
Last updated
Was this helpful?
How a print platform enhances photobook and catalogue PDFs automatically with the VIESUS PDF Enhancer — and which interface and settings fit the workflow.
The scenario: A print production platform receives photobook and catalogue PDFs from customers. Each PDF contains many embedded images at print-insufficient resolution. The platform needs to upscale and enhance every embedded image, then route the finished PDF to the print queue — automatically, as files arrive.
Use the VIESUS PDF Enhancer in hotfolder mode. It works directly on PDFs — enhancing the embedded images while preserving layout, text, and vector content — and can run unattended as a watched-folder service.
The PDF Enhancer is the only interface that operates inside PDFs. For standalone image files use the CLI; for an API-driven cloud flow that also handles PDFs, see Cloud API Integration.
A hotfolder watches an incoming directory. When a PDF lands, the enhancer analyses it, enhances (and optionally upscales) each qualifying embedded image to your target print resolution, and writes a new PDF to the output folder.
Source files can be archived automatically, and a per-file XML report records how many images were processed, enhanced, or skipped — and an error code you can check before routing to print.
It typically runs as a background service so the whole queue is processed without manual steps. A standalone mode is also available for one-off files or when you need to exclude specific pages.
Mode
Hotfolder for continuous queues; standalone for one-off files or page exclusions.
Target resolution
Set the print DPI and cap the upscaling factor to avoid over-enlargement.
Classical vs AI upscaling
Classical upscaling is fast and fine for most jobs; AI upscaling gives the best quality for premium products but needs an NVIDIA GPU and runs slower.
Filtering
Background fills and very small images can be skipped so only real photos are enhanced.
GPU contention
Run one instance per GPU to avoid out-of-memory errors.
Validation
Always check the XML report's error code before sending a PDF to the print queue.
Limitations
Password-protected PDFs can't be opened; very large PDFs need more memory.
Last updated
Was this helpful?
Was this helpful?