讓Ext JS 2 支援IE9

增加下列語法即可

if (typeof Range.prototype.createContextualFragment == "undefined") {
    Range.prototype.createContextualFragment = function(html) {
        var doc = this.startContainer.ownerDocument;
        var container = doc.createElement("div");
        container.innerHTML = html;
        var frag = doc.createDocumentFragment(), n;
        while ( (n = container.firstChild) ) {
            frag.appendChild(n);
        }
        return frag;
    };
}

GraphicsMagick 安裝

GraphicsMagick 據說效能比 ImageMagick好，是ImageMagick的分支

安裝說明網頁

./configure --with-quantum-depth=8 (8、16、32 數字越低，轉圖效率越高)

--with-gslib=yes

--disable-openmp (開閉OpenMP)

--enable-shared

顯示有缺套件時需自行安裝

yum install libjpeg libjpeg-devel zlib zlib-devel libpng libpng-devel bzip2 bzip2-devel lcms lcms-devel librsvg2 librsvg2-devel libxml2 libxml2-devel libtiff libtiff-devel libwmf libwmf-devel libXau libXau-devel

ImageMagick pdf to jpg

安裝 ImageMagick

安裝 ghostscript (PDF 額外套件)，未安裝會出現 error/pdf.c/ReadPDFImage 錯誤

unix 環境

1. ghostscript-8.70.tar.gz
2. ghostscript-fonts-std-8.11.tar.gz 解壓縮到 /usr/local/share/ghostscript/fonts

windows 環境

1. gs871w32.exe
2. 設定path C:\Program Files\gs\gs8.71\bin

執行指令即可轉換檔案 convert -verbose 1.pdf 1.jpg