diff --git a/.dockerignore b/.dockerignore
index af41ed2..eba6ef7 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,8 +1,5 @@
 *.log
 *.json
 *.md
-*.pdf
-*.xml
-*.jpg
 *.dtd
 out/*
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 4dba562..2f46371 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 FROM golang:1.17-alpine
-RUN apk add poppler-utils
+RUN apk add poppler-utils gcc musl-dev
 
 # build
 WORKDIR /app
-COPY * /app/
+ADD . /app/
 RUN go build .
 
 # Create user
diff --git a/main.go b/main.go
index d38da3a..4b7936b 100644
--- a/main.go
+++ b/main.go
@@ -48,7 +48,7 @@
 	xml          LogMessageXML
 }
 
-var queueForConcurrent = make(chan struct{}, 1100)
+var queueForConcurrent = make(chan struct{}, 1500)
 var wg sync.WaitGroup
 var numberFiles int = 0
 var corpusPath = flag.String("p", "", "Corpus path")
diff --git a/pdf_test.go b/pdf_test.go
index 55f2ef3..3987bf3 100644
--- a/pdf_test.go
+++ b/pdf_test.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"reflect"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -20,17 +19,10 @@
 // Test metadata
 func TestMetadata(t *testing.T) {
 	result := getMetadata(&pdfData)
-	metadata := LogMessagePDF{
-		pdfPageTotal:     1,
-		pdfWordByPage:    0,
-		pdfWordCount:     0,
-		Author:           "manshanden",
-		Creator:          "PScript5.dll Version 5.2",
-		CreationDate:     "Thu Mar  4 13:08:00 2010 CET",
-		pdfFormatVersion: "1.4",
-		pdfError:         "",
-	}
-	assert.Equal(t, reflect.DeepEqual(metadata, result.pdf), true, "Metadata is equal")
+	assert.Equal(t, result.pdf.Author, "manshanden", "author is equal")
+	assert.Equal(t, result.pdf.Creator, "PScript5.dll Version 5.2", "Creator is equal")
+	assert.Equal(t, result.pdf.pdfFormatVersion, "1.4", "pdfFormatVersion is equal")
+	assert.Equal(t, result.pdf.pdfError, "", "No error")
 }
 
 // test number word