gamesme
89cff30da9
- Add pdftk installation check for multiple Linux distributions and macOS - Implement comprehensive file validation checks - Improve error handling during PDF processing - Add informative error messages and exit codes - Enhance script reliability and user experience
98 lines
2.7 KiB
Bash
98 lines
2.7 KiB
Bash
#!/bin/bash
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# 检查并安装 pdftk
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check_install_pdftk() {
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if ! command -v pdftk &> /dev/null; then
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echo "未检测到 pdftk，正在尝试安装..."
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# 检测操作系统类型
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if [ -f /etc/os-release ]; then
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. /etc/os-release
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case "$ID" in
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ubuntu|debian)
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sudo apt-get update && sudo apt-get install -y pdftk
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;;
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fedora)
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sudo dnf install -y pdftk
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;;
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centos|rhel)
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sudo yum install -y pdftk
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;;
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*)
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echo "无法确定操作系统类型，请手动安装 pdftk"
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exit 1
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;;
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esac
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elif [ "$(uname)" == "Darwin" ]; then
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# macOS
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if command -v brew &> /dev/null; then
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brew install pdftk-java
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else
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echo "请先安装 Homebrew，然后再安装 pdftk"
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echo "安装 Homebrew: /bin/bash -c \"\$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)\""
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exit 1
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fi
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else
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echo "不支持的操作系统，请手动安装 pdftk"
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exit 1
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fi
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# 再次检查安装是否成功
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if ! command -v pdftk &> /dev/null; then
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echo "pdftk 安装失败，请手动安装"
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exit 1
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fi
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echo "pdftk 安装成功！"
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fi
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}
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# 在开始处理之前检查并安装 pdftk
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check_install_pdftk
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# 检查是否提供了文件名
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if [ "$#" -ne 1 ]; then
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echo "使用方法: $0 [PDF文件名]"
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exit 1
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fi
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# 输入的 PDF 文件名
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PDF_FILE="$1"
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# 添加文件存在性检查
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if [ ! -f "$PDF_FILE" ]; then
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echo "错误：文件 '$PDF_FILE' 不存在"
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exit 1
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fi
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# 添加文件扩展名检查
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if [[ ! "$PDF_FILE" =~ \.pdf$ ]]; then
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echo "错误：文件必须是 PDF 格式"
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exit 1
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fi
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# 设置临时文件和输出文件名
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TEMP_FILE="uncompressed_$PDF_FILE"
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OUTPUT_FILE="recombined_$PDF_FILE"
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# 使用 pdftk 解压 PDF 到文本
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if ! pdftk "$PDF_FILE" output "$TEMP_FILE" uncompress; then
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echo "错误：PDF 解压失败"
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exit 1
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fi
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# 使用 Perl 去除特殊字符
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# 注意: 这里假设特殊字符已经正确插入
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perl -pi -e 's/\x00\x32\x00\x37\x00\x30\x00\x35\x00\x35\x00\x38\x00\x20\x52\x18f%i`\)Tj//g' "$TEMP_FILE"
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# 使用 pdftk 重新组合 PDF
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if ! pdftk "$TEMP_FILE" output "$OUTPUT_FILE" compress; then
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echo "错误：PDF 压缩失败"
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rm -f "$TEMP_FILE" # 清理临时文件
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exit 1
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fi
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# 清理临时文件
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rm -f "$TEMP_FILE"
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echo "处理完成！输出文件：$OUTPUT_FILE"
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