免费PDF转Excel – 在线批量转换，自选页码，本地处理

2026-10-19 49 0 1 提交需求异常反馈

免费在线 PDF 转 Excel 工具。支持批量上传，可按文字位置还原行列，可选全部页面/仅第一页/自定义页码（如1-5,7,9-12），生成 .xlsx 文件。PDF 不上传服务器。

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>PDF转Excel · 免费在线批量转换工具</title>

<script src="https://www.zhong-ai.com/wp-content/uploads/2026/10/1792394045-pdf.min_.js"></script>

<script src="https://www.zhong-ai.com/wp-content/uploads/2026/10/1792394044-jszip.min_.js"></script>

<script>
(function () {
    var sources = [
        'https://lib.baomitu.com/xlsx/0.18.5/xlsx.full.min.js',
        'https://cdn.bootcdn.net/ajax/libs/xlsx/0.18.5/xlsx.full.min.js',
        'https://unpkg.com/xlsx@0.18.5/dist/xlsx.full.min.js',
        'https://www.zhong-ai.com/wp-content/uploads/2026/10/1792397844-xlsx.full_.min_.js'
    ];
    var idx = 0;
    function tryLoad() {
        if (typeof window.XLSX !== 'undefined') return;
        if (idx >= sources.length) {
            console.warn('SheetJS 所有 CDN 均加载失败');
            return;
        }
        var s = document.createElement('script');
        s.src = sources[idx++];
        s.onload = function () {
            if (typeof window.XLSX === 'undefined') tryLoad();
        };
        s.onerror = function () { tryLoad(); };
        document.head.appendChild(s);
    }
    tryLoad();
})();
</script>

.header {
        display: flex; align-items: center; justify-content: space-between;
        flex-wrap: wrap; gap: 12px 18px; margin-bottom: 28px;
    }
    .header-left { display: flex; align-items: center; gap: 12px; }
    .logo {
        font-size: 28px; font-weight: 700;
        background: linear-gradient(135deg, var(--primary), #8b6eff);
        -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        background-clip: text; letter-spacing: -0.5px;
    }
    .logo-icon { font-size: 32px; line-height: 1; -webkit-text-fill-color: initial; }
    .badge {
        font-size: 12px; font-weight: 500; background: var(--primary-light);
        color: var(--primary); padding: 4px 12px; border-radius: 20px;
        -webkit-text-fill-color: var(--primary);
    }
    .header-right {
        font-size: 14px; color: var(--text-secondary);
        display: flex; align-items: center; gap: 6px;
    }
    .header-right span { background: var(--bg); padding: 4px 12px; border-radius: 20px; }

.upload-zone {
        border: 2px dashed var(--border);
        border-radius: var(--radius);
        padding: 40px 20px;
        text-align: center;
        cursor: pointer;
        transition: var(--transition);
        background: var(--bg);
        position: relative;
        margin-bottom: 28px;
    }
    .upload-zone:hover { border-color: var(--primary); background: var(--primary-light); }
    .upload-zone.dragover {
        border-color: var(--primary); background: var(--primary-light);
        transform: scale(1.005);
    }
    .upload-zone .icon { font-size: 48px; display: block; margin-bottom: 8px; }
    .upload-zone h3 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
    .upload-zone p { color: var(--text-secondary); font-size: 14px; }
    .upload-zone .hint { margin-top: 8px; font-size: 13px; color: var(--text-secondary); }
    .upload-zone input[type="file"] {
        position: absolute; inset: 0; opacity: 0; cursor: pointer;
        width: 100%; height: 100%;
    }
    .upload-zone .file-types {
        display: inline-block; margin-top: 6px; font-size: 12px;
        background: var(--card); padding: 2px 14px; border-radius: 20px;
        color: var(--text-secondary); border: 1px solid var(--border);
    }

.file-list {
        margin-bottom: 24px;
        max-height: 600px;
        overflow-y: auto;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        background: var(--bg);
        padding: 4px 0;
    }
    .file-list-empty {
        padding: 40px 20px; text-align: center;
        color: var(--text-secondary); font-size: 15px;
    }
    .file-item {
        display: flex; align-items: center; gap: 14px;
        padding: 12px 16px;
        border-bottom: 1px solid var(--border);
        background: var(--card);
        transition: var(--transition);
    }
    .file-item:last-child { border-bottom: none; }
    .file-item:hover { background: #fafbff; }

.file-thumb {
        width: 56px; height: 56px; flex-shrink: 0;
        border-radius: 6px; background: #f0f2f5;
        overflow: hidden; display: flex; align-items: center; justify-content: center;
        border: 1px solid var(--border);
    }
    .file-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .file-thumb .placeholder-thumb { font-size: 28px; opacity: 0.4; }

.file-info {
        flex: 1; min-width: 0;
        display: flex; flex-wrap: wrap; align-items: center;
        gap: 4px 16px;
    }
    .file-info .name {
        font-weight: 500; font-size: 14px;
        white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
        max-width: 240px;
    }
    .file-info .size { font-size: 13px; color: var(--text-secondary); white-space: nowrap; }
    .file-info .status {
        font-size: 12px; padding: 2px 12px; border-radius: 20px;
        background: var(--bg); color: var(--text-secondary); white-space: nowrap;
    }
    .file-info .status.done { background: #e8f5e9; color: #2e7d32; }
    .file-info .status.error { background: #fce4ec; color: #c62828; }
    .file-info .status.converting { background: #fff3e0; color: #e65100; }
    .file-info .status.loading { background: #e3f2fd; color: #1565c0; }

.file-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
    .file-actions .btn-sm {
        padding: 4px 14px; border-radius: 20px; border: none;
        background: var(--primary-light); color: var(--primary);
        font-size: 12px; font-weight: 500; cursor: pointer; transition: var(--transition);
        font-family: var(--font);
    }
    .file-actions .btn-sm:hover { background: var(--primary); color: #fff; }
    .file-actions .btn-sm:disabled {
        opacity: 0.4; cursor: not-allowed;
        background: var(--border); color: var(--text-secondary);
    }
    .file-actions .btn-sm.danger { background: #fee; color: #e53935; }
    .file-actions .btn-sm.danger:hover { background: #e53935; color: #fff; }

.file-compress-info {
        font-size: 13px; color: var(--text-secondary);
        display: flex; gap: 12px; align-items: center; white-space: nowrap;
    }

.controls {
        display: flex; flex-wrap: wrap; align-items: center;
        gap: 18px 28px;
        padding: 20px 0 0;
        border-top: 1px solid var(--border);
        margin-top: 4px;
    }
    .control-group {
        display: flex; align-items: center; gap: 12px; flex: 1 1 200px;
    }
    .control-group label {
        font-size: 14px; font-weight: 500; white-space: nowrap;
        color: var(--text-secondary);
    }
    .control-group select,
    .control-group input[type="text"] {
        padding: 8px 14px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--card);
        font-size: 14px; font-weight: 500;
        color: var(--text); outline: none;
        transition: var(--transition);
        font-family: var(--font);
    }
    .control-group select:focus,
    .control-group input[type="text"]:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.15);
    }
    .control-group input[type="text"] { flex: 1; min-width: 120px; }

.btn-download-all {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 10px 28px; border-radius: var(--radius-sm); border: none;
        background: var(--primary); color: #fff;
        font-size: 15px; font-weight: 600; cursor: pointer;
        transition: var(--transition);
        box-shadow: 0 4px 14px rgba(79, 124, 255, 0.25);
        white-space: nowrap;
        font-family: var(--font);
    }
    .btn-download-all:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(79, 124, 255, 0.35);
    }
    .btn-download-all:disabled {
        opacity: 0.4; cursor: not-allowed;
        transform: none; box-shadow: none;
    }
    .btn-clear-all {
        background: #f5f5f5; color: var(--text-secondary);
        box-shadow: none; margin-right: 8px;
    }
    .btn-clear-all:hover { background: #e0e0e0; color: var(--text); }

.progress-container {
        margin-top: 18px; padding: 12px 16px;
        background: var(--bg); border-radius: var(--radius-sm);
    }
    .progress-bar {
        height: 8px; background: #e8edf6; border-radius: 4px;
        overflow: hidden; margin-bottom: 6px;
    }
    .progress-fill {
        height: 100%; width: 0%;
        background: linear-gradient(90deg, var(--primary), #8b6eff);
        border-radius: 4px; transition: width 0.3s ease;
    }
    .progress-text {
        font-size: 13px; color: var(--text-secondary); text-align: center;
    }

.footer {
        margin-top: 24px; padding-top: 16px;
        border-top: 1px solid var(--border);
        display: flex; justify-content: space-between; align-items: center;
        flex-wrap: wrap; gap: 8px;
        font-size: 13px; color: var(--text-secondary);
    }
    .footer .stats { display: flex; gap: 10px; flex-wrap: wrap; }
    .footer .stats span {
        background: var(--bg); padding: 3px 14px;
        border-radius: 20px; font-size: 12px;
    }
    .footer .status-msg { color: var(--primary); font-weight: 500; }
    .footer .engine-warn { color: #c62828; font-weight: 500; }

@media (max-width: 768px) {
        .file-item { flex-wrap: wrap; }
        .file-info { flex: 1 1 100%; order: 2; }
        .file-thumb { order: 1; }
        .file-actions { order: 3; width: 100%; justify-content: flex-end; }
        .controls { flex-direction: column; align-items: stretch; }
        .btn-download-all { justify-content: center; }
        .header { flex-direction: column; align-items: flex-start; }
        .footer { flex-direction: column; align-items: flex-start; }
    }

::-webkit-scrollbar { width: 6px; height: 6px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
    ::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
</style>
<style id="__host_fusion__">
html, body { background: transparent !important; margin: 0 !important; padding: 0 !important; overflow-x: hidden !important; }
body > .container, body > .site-shell, body > .wrapper, body > main, body > div:first-of-type:not(.toast):not(.activation-overlay):not([class*="modal"]):not([class*="skip-link"]) { box-shadow: none !important; border: 0 !important; border-radius: 0 !important; background: transparent !important; margin: 0 auto !important; max-width: 100% !important; }
body > .site-shell > .site-header, body > .site-shell > .site-footer { display: none !important; }
button, .btn, input, select, textarea { font-family: inherit; }
</style></head>
<body>

<div class="app" id="app">
    <header class="header">
        <div class="header-left">
            <span class="logo"><span class="logo-icon">📊</span> PDF转Excel</span>
            <span class="badge">PDF → XLSX</span>
        </div>
        <div class="header-right">
            <span>⚡ 纯前端 · 本地处理</span>
        </div>
    </header>

<div class="upload-zone" id="uploadZone">
        <span class="icon">📤</span>
        <h3>拖拽 PDF 文件到此处，或点击上传（支持多份）</h3>
        <p>支持 .pdf 格式，单文件最大 20 MB</p>
        <div class="hint">⬆ 可一次选择多份 PDF，批量提取表格并转换为 Excel</div>
        <div class="file-types">📁 选择多份 PDF</div>
        <input type="file" id="fileInput" accept=".pdf,application/pdf" multiple />
    </div>

<footer class="footer">
        <div class="stats">
            <span>🔒 本地处理 · PDF 不上传服务器</span>
            <span id="fileCount">📎 共 0 个文件</span>
            <span id="statusMsg" class="status-msg"></span>
            <span id="engineStatus" class="engine-warn" style="display:none;"></span>
        </div>
        <div class="action-hint">
            <span>⚡ 扫描版 PDF 无法提取文字，仅支持文本型 PDF</span>
        </div>
    </footer>
</div>

/* ===== 一、依赖检测 ===== */
    const engineStatusEl = document.getElementById('engineStatus');

function missingLibs() {
        const missing = [];
        if (typeof window.pdfjsLib === 'undefined') missing.push('pdf.js');
        if (typeof window.XLSX === 'undefined') missing.push('SheetJS');
        if (typeof window.JSZip === 'undefined') missing.push('JSZip');
        return missing;
    }

function configureWorker() {
        if (typeof window.pdfjsLib !== 'undefined') {
            window.pdfjsLib.GlobalWorkerOptions.workerSrc =
                'https://www.zhong-ai.com/wp-content/uploads/2026/10/1792394045-pdf.worker.min_.js';
        }
    }
    configureWorker();

/* ===== 二、DOM 引用 ===== */
    const uploadZone = document.getElementById('uploadZone');
    const fileInput = document.getElementById('fileInput');
    const fileListEl = document.getElementById('fileList');
    const listEmpty = document.getElementById('listEmpty');
    const fileCountEl = document.getElementById('fileCount');
    const statusMsgEl = document.getElementById('statusMsg');
    const pageRange = document.getElementById('pageRange');
    const customRangeGroup = document.getElementById('customRangeGroup');
    const customPages = document.getElementById('customPages');
    const convertAllBtn = document.getElementById('convertAllBtn');
    const downloadAllBtn = document.getElementById('downloadAllBtn');
    const clearAllBtn = document.getElementById('clearAllBtn');
    const progressContainer = document.getElementById('progressContainer');
    const progressFill = document.getElementById('progressFill');
    const progressText = document.getElementById('progressText');

let filesData = [];
    let idCounter = 0;
    let converting = false;

function showStatus(msg, type) {
        if (!statusMsgEl) return;
        statusMsgEl.textContent = msg;
        statusMsgEl.style.color = type === 'error' ? '#c62828'
            : type === 'success' ? '#2e7d32' : 'var(--primary)';
        clearTimeout(showStatus._t);
        showStatus._t = setTimeout(() => {
            if (statusMsgEl.textContent === msg) statusMsgEl.textContent = '';
        }, 5000);
    }

function formatFileSize(bytes) {
        if (!bytes || bytes === 0) return '0 B';
        const units = ['B', 'KB', 'MB', 'GB'];
        const i = Math.floor(Math.log(bytes) / Math.log(1024));
        return (bytes / Math.pow(1024, i)).toFixed(i === 0 ? 0 : 1) + ' ' + units[i];
    }

/* ===== 三、PDF 处理 ===== */
    async function renderThumb(pdf) {
        const page = await pdf.getPage(1);
        const base = page.getViewport({ scale: 1 });
        const scale = (56 * (window.devicePixelRatio || 1) * 2) / base.height;
        const vp = page.getViewport({ scale });
        const canvas = document.createElement('canvas');
        canvas.width = Math.max(1, Math.floor(vp.width));
        canvas.height = Math.max(1, Math.floor(vp.height));
        await page.render({ canvasContext: canvas.getContext('2d'), viewport: vp }).promise;
        return canvas.toDataURL('image/jpeg', 0.82);
    }

async function extractPageTable(page) {
        const content = await page.getTextContent();
        const items = content.items.filter(it => it.str && it.str.trim() !== '');
        if (items.length === 0) return [];

function parsePageRange(total) {
        const mode = pageRange.value;
        if (mode === 'all') return Array.from({ length: total }, (_, i) => i + 1);
        if (mode === 'first') return [1];

const str = (customPages.value || '').trim();
        if (!str) throw new Error('请在“页码”中填写范围，如 1-5,7');

async function convertOne(f) {
        const buf = f.arrayBuffer.slice(0);
        const pdf = await window.pdfjsLib.getDocument({ data: buf }).promise;
        const pageNums = parsePageRange(pdf.numPages);

const ws = window.XLSX.utils.aoa_to_sheet(allRows);
        const wb = window.XLSX.utils.book_new();
        window.XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');
        const wbArray = window.XLSX.write(wb, { bookType: 'xlsx', type: 'array' });
        return new Blob([wbArray], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
    }

/* ===== 四、渲染 ===== */
    function renderList() {
        fileListEl.querySelectorAll('.file-item').forEach(el => el.remove());

if (filesData.length === 0) {
            listEmpty.style.display = 'block';
            fileCountEl.textContent = '📎 共 0 个文件';
            convertAllBtn.disabled = true;
            downloadAllBtn.disabled = true;
            return;
        }
        listEmpty.style.display = 'none';
        fileCountEl.textContent = `📎 共 ${filesData.length} 个文件`;

const waiting = filesData.some(f => f.status === 'waiting' || f.status === 'error');
        const doneCount = filesData.filter(f => f.status === 'done').length;
        const convertingCount = filesData.filter(f => f.status === 'converting').length;

convertAllBtn.disabled = converting || !waiting;
        downloadAllBtn.disabled = doneCount === 0;

if (convertingCount > 0) showStatus(`⏳ 正在转换 ${convertingCount} 个...`);
        else if (doneCount > 0 && doneCount === filesData.filter(f => f.status !== 'error').length)
            showStatus('✅ 全部转换完成！');

filesData.forEach(f => fileListEl.appendChild(createItem(f)));
    }

function createItem(f) {
        const div = document.createElement('div');
        div.className = 'file-item';
        div.dataset.id = f.id;

const thumb = document.createElement('div');
        thumb.className = 'file-thumb';
        if (f.thumbURL) {
            const img = document.createElement('img');
            img.src = f.thumbURL; img.alt = f.file.name;
            thumb.appendChild(img);
        } else {
            const ph = document.createElement('span');
            ph.className = 'placeholder-thumb'; ph.textContent = '📄';
            thumb.appendChild(ph);
        }
        div.appendChild(thumb);

const info = document.createElement('div');
        info.className = 'file-info';

const name = document.createElement('span');
        name.className = 'name';
        name.textContent = f.file.name; name.title = f.file.name;
        info.appendChild(name);

const size = document.createElement('span');
        size.className = 'size';
        size.textContent = formatFileSize(f.file.size) + (f.pageCount ? ` · ${f.pageCount} 页` : '');
        info.appendChild(size);

if (f.status === 'done' && f.excelBlob) {
            const extra = document.createElement('div');
            extra.className = 'file-compress-info';
            extra.innerHTML = `<span>⬇️ ${formatFileSize(f.excelBlob.size)}</span>`;
            info.appendChild(extra);
        } else if (f.status === 'error') {
            const err = document.createElement('span');
            err.className = 'file-compress-info';
            err.style.color = '#c62828';
            err.textContent = '⚠️ ' + (f.error || '转换失败');
            info.appendChild(err);
        }
        div.appendChild(info);

const actions = document.createElement('div');
        actions.className = 'file-actions';

const dlBtn = document.createElement('button');
        dlBtn.className = 'btn-sm';
        dlBtn.textContent = '⬇️ 下载';
        dlBtn.disabled = !(f.status === 'done' && f.excelBlob);
        dlBtn.addEventListener('click', function (e) {
            e.stopPropagation();
            if (!f.excelBlob) { showStatus('尚未转换完成', 'error'); return; }
            downloadBlob(f.excelBlob, f.file.name.replace(/\.pdf$/i, '') + '.xlsx');
        });
        actions.appendChild(dlBtn);

const delBtn = document.createElement('button');
        delBtn.className = 'btn-sm danger';
        delBtn.textContent = '✕';
        delBtn.addEventListener('click', function (e) {
            e.stopPropagation();
            if (converting) { showStatus('转换进行中，暂不可删除', 'error'); return; }
            removeFile(f.id);
        });
        actions.appendChild(delBtn);

div.appendChild(actions);
        return div;
    }

function removeFile(id) {
        const f = filesData.find(x => x.id === id);
        if (f) { if (f.excelBlob) f.excelBlob = null; filesData = filesData.filter(x => x.id !== id); }
        if (filesData.length === 0) fileInput.value = '';
        renderList();
    }

/* ===== 五、上传 ===== */
    async function handleFiles(fileList) {
        if (!checkLibsReady(true)) return;

for (const file of valid) {
            const f = {
                id: ++idCounter, file: file, arrayBuffer: null,
                thumbURL: null, pageCount: 0, status: 'loading', error: null, excelBlob: null
            };
            filesData.push(f);
            renderList();

try {
                const buf = await file.arrayBuffer();
                f.arrayBuffer = buf;
                const pdf = await window.pdfjsLib.getDocument({ data: buf.slice(0) }).promise;
                f.pageCount = pdf.numPages;
                try { f.thumbURL = await renderThumb(pdf); } catch (_) { f.thumbURL = null; }
                f.status = 'waiting';
            } catch (err) {
                console.error('PDF 解析失败:', err);
                f.status = 'error';
                f.error = 'PDF 解析失败：' + (err && err.message ? err.message : '未知错误');
            }
            renderList();
        }
    }

/* ===== 六、转换 / 下载 ===== */
    function updateProgress(done, total, label) {
        if (!progressContainer) return;
        progressContainer.style.display = 'block';
        const pct = total > 0 ? Math.round((done / total) * 100) : 0;
        progressFill.style.width = pct + '%';
        progressText.textContent = label || `正在转换 ${done}/${total}（${pct}%）`;
    }
    function hideProgress() {
        if (!progressContainer) return;
        progressContainer.style.display = 'none';
        progressFill.style.width = '0%';
    }

async function convertAll() {
        if (!checkLibsReady(true)) return;

if (pageRange.value === 'custom' && !(customPages.value || '').trim()) {
            showStatus('请先在“页码”中填写范围，如 1-5,7', 'error');
            customPages.focus();
            return;
        }

const pending = filesData.filter(f => f.status === 'waiting' || f.status === 'error');
        if (pending.length === 0) { showStatus('没有需要转换的文件'); return; }

converting = true;
        convertAllBtn.disabled = true;
        let done = 0;

for (const f of pending) {
            f.status = 'converting';
            f.error = null;
            renderList();
            updateProgress(done, pending.length, `正在转换：${f.file.name}（${done + 1}/${pending.length}）`);

try {
                const blob = await convertOne(f);
                f.excelBlob = blob;
                f.status = 'done';
            } catch (err) {
                console.error('转换失败:', err);
                f.status = 'error';
                f.error = err && err.message ? err.message : '转换失败';
            }
            done++;
            updateProgress(done, pending.length, `已完成 ${done}/${pending.length}`);
            renderList();
            await new Promise(r => setTimeout(r, 40));
        }

converting = false;
        hideProgress();
        renderList();

function downloadBlob(blob, filename) {
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url; a.download = filename;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        setTimeout(() => URL.revokeObjectURL(url), 5000);
    }

async function downloadAll() {
        const done = filesData.filter(f => f.status === 'done' && f.excelBlob);
        if (done.length === 0) { alert('没有可下载的 Excel 文件，请先完成转换。'); return; }

if (done.length === 1) {
            downloadBlob(done[0].excelBlob, done[0].file.name.replace(/\.pdf$/i, '') + '.xlsx');
            showStatus('✅ 已下载 1 个 Excel 文件', 'success');
            return;
        }

try {
            const zip = new JSZip();
            const used = new Set();
            for (const f of done) {
                let base = f.file.name.replace(/\.pdf$/i, '') + '.xlsx';
                let name = base, i = 1;
                while (used.has(name)) { name = base.replace(/\.xlsx$/i, `_${i}.xlsx`); i++; }
                used.add(name);
                zip.file(name, f.excelBlob);
            }
            showStatus('⏳ 正在打包 ZIP...');
            const zipBlob = await zip.generateAsync({ type: 'blob' });
            downloadBlob(zipBlob, 'pdf_to_excel.zip');
            showStatus(`✅ 已打包下载 ${done.length} 个 Excel 文件`, 'success');
        } catch (err) {
            console.error('打包失败:', err);
            alert('打包失败：' + (err.message || '未知错误'));
        }
    }

function clearAll() {
        if (converting) { showStatus('转换进行中，暂不可清空', 'error'); return; }
        if (filesData.length === 0) return;
        if (!confirm('确定要移除所有 PDF 文件吗？')) return;

filesData.forEach(f => { f.excelBlob = null; });
        filesData = [];
        fileInput.value = '';
        hideProgress();
        renderList();
    }

/* ===== 七、事件 ===== */
    fileInput.addEventListener('change', function () {
        if (this.files && this.files.length > 0) handleFiles(this.files);
        this.value = '';
    });

uploadZone.addEventListener('dragover', function (e) {
        e.preventDefault();
        this.classList.add('dragover');
    });
    uploadZone.addEventListener('dragleave', function (e) {
        e.preventDefault();
        this.classList.remove('dragover');
    });
    uploadZone.addEventListener('drop', function (e) {
        e.preventDefault();
        this.classList.remove('dragover');
        if (e.dataTransfer.files && e.dataTransfer.files.length > 0) handleFiles(e.dataTransfer.files);
    });

pageRange.addEventListener('change', function () {
        if (this.value === 'custom') {
            customRangeGroup.style.display = 'flex';
            setTimeout(() => customPages.focus(), 50);
        } else {
            customRangeGroup.style.display = 'none';
        }
    });

convertAllBtn.addEventListener('click', convertAll);
    downloadAllBtn.addEventListener('click', downloadAll);
    clearAllBtn.addEventListener('click', clearAll);

document.addEventListener('keydown', function (e) {
        if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
            if (!convertAllBtn.disabled) convertAllBtn.click();
        }
    });

/* ===== 八、初始化 ===== */
    function init() {
        checkLibsReady(false);

let tries = 0;
        const poll = setInterval(() => {
            const ok = missingLibs().length === 0;
            checkLibsReady(false);
            if (ok) configureWorker();
            tries++;
            if (ok || tries >= 40) clearInterval(poll);
        }, 500);

renderList();
        console.log('📊 PDF转Excel 工具已加载');
    }

if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', init);
    else init();
})();
</script>
</body>
</html>