Merge pull request #150 from omenmn/pdftopng

feat: pdf to png

src/components/result/ResultFooter.tsx

@@ -8,12 +8,14 @@ export default function ResultFooter({
   handleDownload,
   handleCopy,
   disabled,
-  hideCopy
+  hideCopy,
+  downloadLabel = 'Download'
 }: {
   handleDownload: () => void;
-  handleCopy: () => void;
+  handleCopy?: () => void;
   disabled?: boolean;
   hideCopy?: boolean;
+  downloadLabel?: string;
 }) {
   return (
     <Stack mt={1} direction={'row'} spacing={2}>
@@ -22,7 +24,7 @@ export default function ResultFooter({
         onClick={handleDownload}
         startIcon={<DownloadIcon />}
       >
-        Save as
+        {downloadLabel}
       </Button>
       {!hideCopy && (
         <Button

src/components/result/ToolMultiFileResult.tsx

@@ -0,0 +1,145 @@
+import {
+  Box,
+  CircularProgress,
+  Typography,
+  useTheme,
+  Button
+} from '@mui/material';
+import InputHeader from '../InputHeader';
+import greyPattern from '@assets/grey-pattern.png';
+import { globalInputHeight } from '../../config/uiConfig';
+import ResultFooter from './ResultFooter';
+
+export default function ToolFileResult({
+  title = 'Result',
+  value,
+  zipFile,
+  loading,
+  loadingText
+}: {
+  title?: string;
+  value: File[];
+  zipFile?: File | null;
+  loading?: boolean;
+  loadingText?: string;
+}) {
+  const theme = useTheme();
+
+  const getFileType = (
+    file: File
+  ): 'image' | 'video' | 'audio' | 'pdf' | 'unknown' => {
+    if (file.type.startsWith('image/')) return 'image';
+    if (file.type.startsWith('video/')) return 'video';
+    if (file.type.startsWith('audio/')) return 'audio';
+    if (file.type.startsWith('application/pdf')) return 'pdf';
+    return 'unknown';
+  };
+
+  const handleDownload = (file: File) => {
+    const url = URL.createObjectURL(file);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = file.name;
+    document.body.appendChild(a);
+    a.click();
+    document.body.removeChild(a);
+    URL.revokeObjectURL(url);
+  };
+
+  return (
+    <Box>
+      <InputHeader title={title} />
+      <Box
+        sx={{
+          width: '100%',
+          height: globalInputHeight,
+          overflowY: 'auto',
+          display: 'flex',
+          flexDirection: 'column',
+          gap: 2,
+          border: 1,
+          borderRadius: 2,
+          boxShadow: '5',
+          bgcolor: 'background.paper',
+          alignItems: 'center',
+          p: 2
+        }}
+      >
+        {loading ? (
+          <Box
+            sx={{
+              display: 'flex',
+              flexDirection: 'column',
+              alignItems: 'center',
+              justifyContent: 'center',
+              height: globalInputHeight
+            }}
+          >
+            <CircularProgress />
+            <Typography variant="body2" sx={{ mt: 2 }}>
+              {loadingText}... This may take a moment.
+            </Typography>
+          </Box>
+        ) : (
+          value.length > 0 &&
+          value.map((file, idx) => {
+            const preview = URL.createObjectURL(file);
+            const fileType = getFileType(file);
+
+            return (
+              <Box
+                key={idx}
+                sx={{
+                  backgroundImage:
+                    fileType === 'image' && theme.palette.mode !== 'dark'
+                      ? `url(${greyPattern})`
+                      : 'none',
+                  p: 1,
+                  border: '1px solid #ddd',
+                  borderRadius: 2,
+                  display: 'flex',
+                  flexDirection: 'column',
+                  alignItems: 'center'
+                }}
+              >
+                {fileType === 'image' && (
+                  <img
+                    src={preview}
+                    alt={`Preview ${idx}`}
+                    style={{ maxWidth: '100%', maxHeight: 300 }}
+                  />
+                )}
+                {fileType === 'video' && (
+                  <video src={preview} controls style={{ maxWidth: '100%' }} />
+                )}
+                {fileType === 'audio' && (
+                  <audio src={preview} controls style={{ width: '100%' }} />
+                )}
+                {fileType === 'pdf' && (
+                  <iframe src={preview} width="100%" height="400px" />
+                )}
+                {fileType === 'unknown' && (
+                  <Typography>File ready. Click below to download.</Typography>
+                )}
+                <Button
+                  onClick={() => handleDownload(file)}
+                  size="small"
+                  sx={{ mt: 1 }}
+                  variant="contained"
+                >
+                  Download {file.name}
+                </Button>
+              </Box>
+            );
+          })
+        )}
+      </Box>
+      <ResultFooter
+        downloadLabel={'Download All as ZIP'}
+        hideCopy
+        disabled={!zipFile}
+        handleDownload={() => zipFile && handleDownload(zipFile)}
+      />
+    </Box>
+  );
+}

src/pages/tools/pdf/index.ts

@@ -1,3 +1,4 @@
+import { tool as pdfPdfToPng } from './pdf-to-png/meta';
 import { tool as pdfRotatePdf } from './rotate-pdf/meta';
 import { meta as splitPdfMeta } from './split-pdf/meta';
 import { meta as mergePdf } from './merge-pdf/meta';
@@ -12,5 +13,6 @@ export const pdfTools: DefinedTool[] = [
   compressPdfTool,
   protectPdfTool,
   mergePdf,
-  pdfToEpub
+  pdfToEpub,
+  pdfPdfToPng
 ];

src/pages/tools/pdf/pdf-to-png/index.tsx

@@ -0,0 +1,70 @@
+import { useState } from 'react';
+import ToolContent from '@components/ToolContent';
+import ToolPdfInput from '@components/input/ToolPdfInput';
+import { ToolComponentProps } from '@tools/defineTool';
+import { convertPdfToPngImages } from './service';
+import ToolMultiFileResult from '@components/result/ToolMultiFileResult';
+
+type ImagePreview = {
+  blob: Blob;
+  url: string;
+  filename: string;
+};
+
+export default function PdfToPng({ title }: ToolComponentProps) {
+  const [input, setInput] = useState<File | null>(null);
+  const [images, setImages] = useState<ImagePreview[]>([]);
+  const [zipBlob, setZipBlob] = useState<File | null>(null);
+  const [loading, setLoading] = useState(false);
+
+  const compute = async (_: {}, file: File | null) => {
+    if (!file) return;
+    setLoading(true);
+    setImages([]);
+    setZipBlob(null);
+    try {
+      const { images, zipFile } = await convertPdfToPngImages(file);
+      setImages(images);
+      setZipBlob(zipFile);
+    } catch (err) {
+      console.error('Conversion failed:', err);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <ToolContent
+      title={title}
+      input={input}
+      setInput={setInput}
+      initialValues={{}}
+      compute={compute}
+      inputComponent={
+        <ToolPdfInput
+          value={input}
+          onChange={setInput}
+          accept={['application/pdf']}
+          title="Upload a PDF"
+        />
+      }
+      resultComponent={
+        <ToolMultiFileResult
+          title="Converted PNG Pages"
+          value={images.map((img) => {
+            return new File([img.blob], img.filename, { type: 'image/png' });
+          })}
+          zipFile={zipBlob}
+          loading={loading}
+          loadingText="Converting PDF pages"
+        />
+      }
+      getGroups={null}
+      toolInfo={{
+        title: 'Convert PDF pages into PNG images',
+        description:
+          'Upload your PDF and get each page rendered as a high-quality PNG. You can preview, download individually, or get all images in a ZIP.'
+      }}
+    />
+  );
+}

src/pages/tools/pdf/pdf-to-png/meta.ts

@@ -0,0 +1,14 @@
+import { defineTool } from '@tools/defineTool';
+import { lazy } from 'react';
+
+export const tool = defineTool('pdf', {
+  name: 'PDF to PNG',
+  path: 'pdf-to-png',
+  icon: 'mdi:image-multiple', // Iconify icon ID
+  description: 'Transform PDF documents into PNG panels.',
+  shortDescription: 'Convert PDF into PNG images',
+  keywords: ['pdf', 'png', 'convert', 'image', 'extract', 'pages'],
+  longDescription:
+    'Upload a PDF and convert each page into a high-quality PNG image directly in your browser. This tool is ideal for extracting visual content or sharing individual pages. No data is uploaded — everything runs locally.',
+  component: lazy(() => import('./index'))
+});

src/pages/tools/pdf/pdf-to-png/service.ts

@@ -0,0 +1,51 @@
+import * as pdfjsLib from 'pdfjs-dist';
+import pdfjsWorker from 'pdfjs-dist/build/pdf.worker.min?url';
+import JSZip from 'jszip';
+
+pdfjsLib.GlobalWorkerOptions.workerSrc = pdfjsWorker;
+
+type ImagePreview = {
+  blob: Blob;
+  url: string;
+  filename: string;
+};
+
+export async function convertPdfToPngImages(pdfFile: File): Promise<{
+  images: ImagePreview[];
+  zipFile: File;
+}> {
+  const arrayBuffer = await pdfFile.arrayBuffer();
+  const pdf = await pdfjsLib.getDocument({ data: arrayBuffer }).promise;
+  const zip = new JSZip();
+  const images: ImagePreview[] = [];
+
+  for (let i = 1; i <= pdf.numPages; i++) {
+    const page = await pdf.getPage(i);
+    const viewport = page.getViewport({ scale: 2 });
+
+    const canvas = document.createElement('canvas');
+    const context = canvas.getContext('2d')!;
+    canvas.width = viewport.width;
+    canvas.height = viewport.height;
+
+    await page.render({ canvasContext: context, viewport }).promise;
+
+    const blob = await new Promise<Blob>((resolve) =>
+      canvas.toBlob((b) => b && resolve(b), 'image/png')
+    );
+
+    const filename = `page-${i}.png`;
+    const url = URL.createObjectURL(blob);
+    images.push({ blob, url, filename });
+    zip.file(filename, blob);
+  }
+
+  const zipBuffer = await zip.generateAsync({ type: 'arraybuffer' });
+  const zipFile = new File(
+    [zipBuffer],
+    pdfFile.name.replace(/\.pdf$/i, '-pages.zip'),
+    { type: 'application/zip' }
+  );
+
+  return { images, zipFile };
+}