feat: compression level

src/lib/ghostscript/background-worker.js

@@ -5,6 +5,23 @@ function loadScript() {
 var Module;
 
 function _GSPS2PDF(dataStruct, responseCallback) {
+  const compressionLevel = dataStruct.compressionLevel || 'medium';
+
+  // Set PDF settings based on compression level
+  let pdfSettings;
+  switch (compressionLevel) {
+    case 'low':
+      pdfSettings = '/printer'; // Higher quality, less compression
+      break;
+    case 'medium':
+      pdfSettings = '/ebook'; // Medium quality and compression
+      break;
+    case 'high':
+      pdfSettings = '/screen'; // Lower quality, higher compression
+      break;
+    default:
+      pdfSettings = '/ebook'; // Default to medium
+  }
   // first download the ps data
   var xhr = new XMLHttpRequest();
   xhr.open('GET', dataStruct.psDataURL);
@@ -33,7 +50,7 @@ function _GSPS2PDF(dataStruct, responseCallback) {
       arguments: [
         '-sDEVICE=pdfwrite',
         '-dCompatibilityLevel=1.4',
-        '-dPDFSETTINGS=/ebook',
+        `-dPDFSETTINGS=${pdfSettings}`,
         '-DNOPAUSE',
         '-dQUIET',
         '-dBATCH',

src/pages/tools/pdf/compress-pdf/index.tsx

@@ -152,7 +152,6 @@ export default function CompressPdf({
       setInput={setInput}
       initialValues={initialValues}
       compute={compute}
-      exampleCards={exampleCards}
       inputComponent={
         <ToolPdfInput
           value={input}
@@ -175,22 +174,23 @@ export default function CompressPdf({
           title: 'Compression Settings',
           component: (
             <Box>
-              <Typography variant="subtitle2" sx={{ mb: 1 }}>
-                Compression Level
-              </Typography>
-
-              {compressionOptions.map((option) => (
-                <SimpleRadio
-                  key={option.value}
-                  title={option.label}
-                  description={option.description}
-                  checked={values.compressionLevel === option.value}
-                  onClick={() => {
-                    updateField('compressionLevel', option.value);
-                  }}
-                />
-              ))}
+              <Box>
+                <Typography variant="subtitle2" sx={{ mb: 1 }}>
+                  Compression Level
+                </Typography>
 
+                {compressionOptions.map((option) => (
+                  <SimpleRadio
+                    key={option.value}
+                    title={option.label}
+                    description={option.description}
+                    checked={values.compressionLevel === option.value}
+                    onClick={() => {
+                      updateField('compressionLevel', option.value);
+                    }}
+                  />
+                ))}
+              </Box>
               {fileInfo && (
                 <Box
                   sx={{
@@ -217,27 +217,6 @@ export default function CompressPdf({
           )
         }
       ]}
-      toolInfo={{
-        title: 'How to Use the Compress PDF Tool',
-        description: `This tool allows you to compress PDF files securely in your browser using Ghostscript, a powerful PDF processing engine. Your files never leave your device, ensuring complete privacy and security.
-
-Choose a compression level:
-- Low Compression: Slightly reduces file size with minimal quality loss (72 dpi images)
-- Medium Compression: Balances between file size and quality (150 dpi images) - Recommended for most cases
-- High Compression: Maximum file size reduction with some quality loss (300 dpi images)
-
-How it works:
-1. Upload your PDF file
-2. Select your desired compression level
-3. Click "Compress" and wait for processing
-4. Download your compressed PDF
-
-The tool uses WebAssembly to run Ghostscript directly in your browser, which is why the first compression might take a moment to load the necessary components (about 18MB).
-
-Note: The compression results may vary depending on the content of your PDF. Documents with many images will typically see greater size reduction than text-only documents.
-
-${longDescription}`
-      }}
     />
   );
 }

src/pages/tools/pdf/compress-pdf/service.ts

@@ -18,7 +18,10 @@ export async function compressPdf(
     throw new Error('The provided file is not a PDF');
   }
 
-  const dataObject = { psDataURL: URL.createObjectURL(pdfFile) };
+  const dataObject = {
+    psDataURL: URL.createObjectURL(pdfFile),
+    compressionLevel: options.compressionLevel
+  };
   const compressedFileUrl: string = await compressWithGhostScript(dataObject);
   return await loadPDFData(compressedFileUrl, pdfFile.name);
 }