I need help - I can help - Color Shift in PDF Display

Print Page | Close Window

Color Shift in PDF Display – Light Gray -> Dark

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=4047
Printed Date: 03 Apr 25 at 9:36AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Color Shift in PDF Display – Light Gray -> Dark

Posted By: Skandinavier
Subject: Color Shift in PDF Display – Light Gray -> Dark
Date Posted: 31 Mar 25 at 10:31AM

Hello everyone,

I’m loading a PDF document into a PictureBox for display, but I’m experiencing an issue with color accuracy. The gray tones in the original PDF appear different in the PictureBox – specifically, light gray turns into dark gray.

Functions, that I use:

' Open the file, get a file handle

fileHandle = QP.DAOpenFileReadOnly(File_Name, password)

' Render the page to BMP format into the byte array

Dim bitmapData = QP.DARenderPageToString(fileHandle, pageReference, 0, smallestDPI)

' Put the byte array into a stream

Dim stream As New System.IO.MemoryStream(bitmapData)

' Create a new Image from the stream

PctPreview.Image = Image.FromStream(stream)

Does anyone know what might be causing this? How can I ensure that the colors are displayed correctly?

Thanks for your help!