PDFBaba
Online PDF Tool

Viewer preferences

Control toolbar, window, duplex, and other PDF open behavior via JSON.

Features

JSON viewer preferences
Fit/center window
Print-related flags

How to use

  1. 1

    Upload your source file.

  2. 2

    Click set viewer preferences to process the document.

  3. 3

    Download the output file.

Related tools

metadata pdfpage layout mode pdfvalidate pdf

Set viewer preferences

PDF up to the server upload limit (default 100MB).

Drop files here or browse

PDF files up to 100MB

JSON matching pdfcpu viewer preferences (booleans, Duplex, NumCopies, etc.).

Frequently Asked Questions

Is Viewer preferences free to use?

Yes. This tool is available for free with no account required for basic usage.

Are files secure when using Viewer preferences?

Uploaded files are processed temporarily and automatically removed after one hour.

How do I get the best result with Viewer preferences?

Use clean source files and review output after processing, especially for complex viewer preferences workflows.

Files are automatically deleted after one hour for privacy.