From 219cc653ddb395405cd2bead0cd5f806db0939e0 Mon Sep 17 00:00:00 2001
From: "Ibrahima G. Coulibaly" <ibracool99@gmail.com>
Date: Thu, 3 Apr 2025 02:02:09 +0000
Subject: [PATCH] feat: compression level

---
 .idea/workspace.xml                         | 48 +++++++++----------
 src/lib/ghostscript/background-worker.js    | 19 +++++++-
 src/pages/tools/pdf/compress-pdf/index.tsx  | 53 +++++++--------------
 src/pages/tools/pdf/compress-pdf/service.ts |  5 +-
 4 files changed, 61 insertions(+), 64 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 270c23d..b32a1e0 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,13 +4,11 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="b30e2810-c4c1-4aad-b134-794e52cc1c7d" name="Changes" comment="refactor: compress pdf">
+    <list default="true" id="b30e2810-c4c1-4aad-b134-794e52cc1c7d" name="Changes" comment="fix: path">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/lib/background-worker.js" beforeDir="false" afterPath="$PROJECT_DIR$/src/lib/ghostscript/background-worker.js" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/lib/gs-worker.js" beforeDir="false" afterPath="$PROJECT_DIR$/src/lib/ghostscript/gs-worker.js" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/lib/worker-init.js" beforeDir="false" afterPath="$PROJECT_DIR$/src/lib/ghostscript/worker-init.js" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/lib/ghostscript/background-worker.js" beforeDir="false" afterPath="$PROJECT_DIR$/src/lib/ghostscript/background-worker.js" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/pages/tools/pdf/compress-pdf/index.tsx" beforeDir="false" afterPath="$PROJECT_DIR$/src/pages/tools/pdf/compress-pdf/index.tsx" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/pages/tools/pdf/compress-pdf/service.ts" beforeDir="false" afterPath="$PROJECT_DIR$/src/pages/tools/pdf/compress-pdf/service.ts" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tsconfig.json" beforeDir="false" afterPath="$PROJECT_DIR$/tsconfig.json" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -411,22 +409,6 @@
       <workItem from="1743397561176" duration="25000" />
       <workItem from="1743458576265" duration="13083000" />
     </task>
-    <task id="LOCAL-00135" summary="feat: jakarta font">
-      <option name="closed" value="true" />
-      <created>1740665609483</created>
-      <option name="number" value="00135" />
-      <option name="presentableId" value="LOCAL-00135" />
-      <option name="project" value="LOCAL" />
-      <updated>1740665609483</updated>
-    </task>
-    <task id="LOCAL-00136" summary="chore: img">
-      <option name="closed" value="true" />
-      <created>1740680778110</created>
-      <option name="number" value="00136" />
-      <option name="presentableId" value="LOCAL-00136" />
-      <option name="project" value="LOCAL" />
-      <updated>1740680778110</updated>
-    </task>
     <task id="LOCAL-00137" summary="docs: readme">
       <option name="closed" value="true" />
       <created>1740788899030</created>
@@ -803,7 +785,23 @@
       <option name="project" value="LOCAL" />
       <updated>1743644703042</updated>
     </task>
-    <option name="localTasksCounter" value="184" />
+    <task id="LOCAL-00184" summary="refactor: lib">
+      <option name="closed" value="true" />
+      <created>1743644942488</created>
+      <option name="number" value="00184" />
+      <option name="presentableId" value="LOCAL-00184" />
+      <option name="project" value="LOCAL" />
+      <updated>1743644942488</updated>
+    </task>
+    <task id="LOCAL-00185" summary="fix: path">
+      <option name="closed" value="true" />
+      <created>1743645074051</created>
+      <option name="number" value="00185" />
+      <option name="presentableId" value="LOCAL-00185" />
+      <option name="project" value="LOCAL" />
+      <updated>1743645074051</updated>
+    </task>
+    <option name="localTasksCounter" value="186" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -850,8 +848,6 @@
     <option name="CHECK_CODE_SMELLS_BEFORE_PROJECT_COMMIT" value="false" />
     <option name="CHECK_NEW_TODO" value="false" />
     <option name="ADD_EXTERNAL_FILES_SILENTLY" value="true" />
-    <MESSAGE value="fix: prettify json" />
-    <MESSAGE value="refactor: sum" />
     <MESSAGE value="fix: tools by category scroll" />
     <MESSAGE value="fix: missing meta" />
     <MESSAGE value="feat: trim video" />
@@ -875,7 +871,9 @@
     <MESSAGE value="fix: stars button width for 1k+ " />
     <MESSAGE value="feat: compress pdf" />
     <MESSAGE value="refactor: compress pdf" />
-    <option name="LAST_COMMIT_MESSAGE" value="refactor: compress pdf" />
+    <MESSAGE value="refactor: lib" />
+    <MESSAGE value="fix: path" />
+    <option name="LAST_COMMIT_MESSAGE" value="fix: path" />
   </component>
   <component name="XSLT-Support.FileAssociations.UIState">
     <expand />
diff --git a/src/lib/ghostscript/background-worker.js b/src/lib/ghostscript/background-worker.js
index 878f587..1bfe7c2 100644
--- a/src/lib/ghostscript/background-worker.js
+++ b/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',
diff --git a/src/pages/tools/pdf/compress-pdf/index.tsx b/src/pages/tools/pdf/compress-pdf/index.tsx
index 565fd86..c5a8b2c 100644
--- a/src/pages/tools/pdf/compress-pdf/index.tsx
+++ b/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}`
-      }}
     />
   );
 }
diff --git a/src/pages/tools/pdf/compress-pdf/service.ts b/src/pages/tools/pdf/compress-pdf/service.ts
index 58f21ca..2aa3c28 100644
--- a/src/pages/tools/pdf/compress-pdf/service.ts
+++ b/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);
 }