Compress original Image of PDF file

classes/ImageResizer.php

@@ -36,7 +36,7 @@ class ImageResizer
 
     private function dimensions(): Collection
     {
-        [$width, $height] = getimagesize($this->file->root());
+        [$width, $height] = $this->file->compressor()->originalSize();
 
         return collect(compact('width', 'height'));
     }
@@ -56,19 +56,18 @@ class ImageResizer
         $ratios = collect();
         $ratios->push($this->dimensions());
         $ratios = $ratios->merge($this->sizes());
-        [$origWidth, $origHeight] = getimagesize($this->file->root());
 
         foreach (collect(Setting::get('breakpoints'))->push($this->dimensions()->get('width'))->unique() as $size) {
             foreach ($ratios as $ratio) {
                 $width = $size;
                 $height = $size * $ratio->get('height') / $ratio->get('width');
 
-                if ($height > $origHeight) {
+                if ($height > $this->dimensions()->get('height')) {
-                    $width = $width * $origHeight / $height;
+                    $width = $width * $this->dimensions()->get('height') / $height;
-                    $height = $origHeight;
+                    $height = $this->dimensions()->get('height');
                 }
 
-                if (ceil($width) > $origWidth || ceil($height) > $origHeight) {
+                if (ceil($width) > $this->dimensions()->get('width') || ceil($height) > $this->dimensions()->get('height')) {
                     continue;
                 }
 

compressors/Compressor.php

@@ -2,15 +2,23 @@
 
 namespace Aweos\Resizer\Compressors;
 
+use Aweos\Resizer\Lib\MediaPath;
 use Storage;
 
 abstract class Compressor
 {
 
+    protected $media;
+
     abstract function make(string $path): array;
 
     abstract protected function getExtension();
 
+    public function __construct(MediaPath $media)
+    {
+        $this->media = $media;
+    }
+
     public function tmpPath(): string
     {
         return "/tmp/".str_slug(microtime());

compressors/Factory.php

@@ -12,6 +12,7 @@ class Factory
     public array $types = [
         'image/jpeg' => JpgCompressor::class,
         'image/png' => PngCompressor::class,
+        'application/pdf' => PdfCompressor::class,
     ];
 
     public function fromMedia(string $mediaPath): Compressor

compressors/JpgCompressor.php

@@ -26,6 +26,11 @@ class JpgCompressor extends Compressor {
         ];
     }
 
+    public function originalSize(): array
+    {
+        return getimagesize($this->media->root());
+    }
+
     public function shouldGenerateVersions(): bool
     {
         return true;
@@ -42,14 +47,7 @@ class JpgCompressor extends Compressor {
 
         list($destWidth, $destHeight) = getimagesize(Storage::path($temp));
 
-        $versionFilename = $destination.
+        $versionFilename = $destination.'/'.$this->versionFilename($source, $destWidth, $destHeight);
-            '/'.
-            pathinfo($source, PATHINFO_FILENAME).
-            '-'.
-            $destWidth.
-            'x'.
-            $destHeight.
-            '.jpg';
 
         $this->moveTo($temp, $versionFilename);
     }

compressors/PdfCompressor.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Aweos\Resizer\Compressors;
+
+use Illuminate\Support\Collection;
+use Intervention\Image\ImageManager;
+use Storage;
+
+class PdfCompressor extends Compressor {
+
+    protected function getExtension(): string
+    {
+        return 'jpg';
+    }
+
+    public function make(string $path): array
+    {
+        $output = $this->tmpPath();
+        $mimetype = mime_content_type($path);
+
+        system('imagemin '.escapeshellarg($path).' --plugin=jpegtran --plugin=mozjpeg --plugin.mozjpeg.quality=70 > '.escapeshellarg($output));
+        system("mv ".escapeshellarg($output)." ".escapeshellarg($path));
+
+        return [
+            $path => [$path],
+        ];
+    }
+
+    private function extractImage(string $pdf): string
+    {
+        $file = $this->tmpPath().'.jpg';
+
+        exec('convert -density 150 '.escapeshellarg($pdf.'[0]').' -quality 90 '.escapeshellarg($file), $output, $r);
+
+        return $file;
+    }
+
+    public function originalSize(): array
+    {
+        return getimagesize($this->extractImage($this->media->root()));
+    }
+
+    public function shouldGenerateVersions(): bool
+    {
+        return true;
+    }
+
+    public function resize(string $source, string $destination, Collection $size): void
+    {
+        $temp = $this->extractImage($source);
+
+        $r = app(ImageManager::class)->make($temp)
+            ->fit($size->get('width'), $size->get('height'), fn ($constraint) => $constraint->upsize())
+            ->save($temp);
+
+        list($destWidth, $destHeight) = getimagesize($temp);
+        $versionFilename = $destination.'/'.$this->versionFilename($source, $destWidth, $destHeight);
+
+        Storage::put($versionFilename, file_get_contents($temp));
+    }
+
+}

compressors/PngCompressor.php

@@ -26,6 +26,11 @@ class PngCompressor extends Compressor {
         ];
     }
 
+    public function originalSize(): array
+    {
+        return getimagesize($this->media->root());
+    }
+
     public function shouldGenerateVersions(): bool
     {
         return true;

tests/ResizerTest.php

@@ -224,4 +224,18 @@ class ResizerTest extends TestCase
         $this->assertFileCount(2, 'pages');
     }
 
+    public function testGeneratePdfImages(): void
+    {
+        Setting::set('folders', [['folder' => '/pages']]);
+        Setting::set('sizes', []);
+        Setting::set('breakpoints', []);
+
+        $media = MediaLibrary::instance();
+        $media->put('/pages/test.pdf', file_get_contents(__DIR__.'/stub/dummy.pdf'));
+        Event::fire('media.file.upload', [null, '/pages/test.pdf', null]);
+
+        $this->assertHasFile('pages/test-1275x1650.jpg');
+        $this->assertFileCount(1, 'pages');
+    }
+
 }

tests/stub/dummy.pdf

@@ -0,0 +1,198 @@
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