A-PDF 圖像下採樣提供了一種快速方法，可直接在 Acrobat PDF 文檔中重新採樣圖像。它通過降低這些圖像的解析度以符合特定品質要求並壓縮圖像來減小 PDF 檔的大小。然後，它使PDF檔在Web上讀取速度更快。它支援有損壓縮和無損壓縮。 許多因素會影響檔大小和檔品質，但當您使用圖像密集型檔時，重新採樣和壓縮非常重要。 A-PDF 圖像向下採樣的其他功能包括處理一批 PDF 檔，甚至使用受密碼保護的檔;過濾可能是徽標或其他的小圖像;並處理一些頁面，只是為了加快處理速度。 A-PDF 圖像下採樣不需要 Adobe Acrobat，並生成與 Adobe Acrobat 閱讀器版本 5 及更上面相容的文檔。
軟體細節
終端使用者許可協定
License Agreements All copyrights to A-PDF Image Downsample (the Software) are exclusively owned by A-PDF Solution. For more information, visit our website at www.A-PDF.com. Anyone may use this software but all the pdf files generated will automatically have a demo watermark on the first page of them. Remove the limitation need your register. Once registered, the user is granted a non-exclusive license to use the Software on one computer (i.e. a single CPU) at a time. The registered Software may not be rented or leased, but may be permanently transferred, if the person receiving it agrees to terms of this license. The Software unregistered (trial) version may be freely distributed, provided the distribution package is not modified. No person or company may charge a fee for the distribution of the Software without written permission from the copyright holder. THE SOFTWARE IS DISTRIBUTED "AS IS". NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED. YOU USE AT YOUR OWN RISK. THE AUTHOR WILL NOT BE LIABLE FOR DATA LOSS, DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING OR MISUSING THIS SOFTWARE. You may not use, copy, emulate, clone, rent, lease, sell, modify, decompile, disassemble, otherwise reverse engineer, or transfer the licensed Software, or any subset of the licensed Software, except as provided for in this agreement. Any such unauthorised use shall result in immediate and automatic termination of this license and may result in criminal and/or civil prosecution. All rights not expressly granted here are reserved by A-PDF Solution. Installing and using the Software signifies acceptance of these terms and conditions of the license. If you do not agree with the terms of this license you must remove the Software files from your storage devices and cease to use the product.