Debenu Quick PDF Library - PDF SDK Community Forum : Color Shift in PDF Display – Light Gray -> Dark http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 10 May 2026 00:12:41 +0000 Mon, 31 Mar 2025 10:31:49 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=4047 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Color Shift in PDF Display – Light Gray -> Dark : Hello everyone,I’m loading a...]]> http://www.quickpdf.org/forum/color-shift-in-pdf-display-light-gray-dark_topic4047_post16391.html#16391 Author: Skandinavier
Subject: 4047
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! 


Edited by Skandinavier - 31 Mar 25 at 10:34AM]]> Mon, 31 Mar 2025 10:31:49 +0000 http://www.quickpdf.org/forum/color-shift-in-pdf-display-light-gray-dark_topic4047_post16391.html#16391