diff --git a/apk_frauder/src/file_header.rs b/apk_frauder/src/file_header.rs
index 1968703..6b4e0b6 100644
--- a/apk_frauder/src/file_header.rs
+++ b/apk_frauder/src/file_header.rs
@@ -1,3 +1,4 @@
+use log::warn;
 use std::io::{SeekFrom, Write};
 
 use crate::compression::CompressionMethod;
@@ -122,7 +123,7 @@ impl Serializable for FileHeader {
             let field = ExtraField::deserialize(input);
 
             if let Err(err) = field {
-                println!(
+                warn!(
                     "Failed to parsed extra field in {}: {err:?}",
                     header.get_name()
                 );
@@ -135,7 +136,7 @@ impl Serializable for FileHeader {
             }
         }
         if extra_size_read > extra_field_length as usize {
-            println!("Failed to parse last extra field in {}", header.get_name());
+            warn!("Failed to parse last extra field in {}", header.get_name());
             let size = header.extra_field.pop().unwrap().size();
             input.seek(SeekFrom::Current(-(size as i64))).unwrap();
         }
diff --git a/apk_frauder/src/local_file_header.rs b/apk_frauder/src/local_file_header.rs
index 17fd0d0..2b4a5ba 100644
--- a/apk_frauder/src/local_file_header.rs
+++ b/apk_frauder/src/local_file_header.rs
@@ -1,5 +1,7 @@
 use std::io::{SeekFrom, Write};
 
+use log::warn;
+
 use crate::compression::CompressionMethod;
 use crate::error::Error;
 use crate::extra_fields::{ExtraField, GenericExtraField, Zip64ExtraField};
@@ -99,9 +101,9 @@ impl Serializable for LocalFileHeader {
             let field = ExtraField::deserialize(input);
 
             if let Err(err) = field {
-                println!(
+                warn!(
                     "Failed to parsed extra field in {}: {err:?}",
-                    header.get_name()
+                    header.get_name(),
                 );
                 input.seek(SeekFrom::Start(field_off)).unwrap();
                 break;
@@ -129,7 +131,7 @@ impl Serializable for LocalFileHeader {
             && header.malformed_extra_field != vec![0, 0]
             && header.malformed_extra_field != vec![0, 0, 0]
         {
-            println!("Failed to parse last extra field in {}", header.get_name());
+            warn!("Failed to parse last extra field in {}", header.get_name());
         }
         //input.seek(SeekFrom::Start(end_of_extra_field)).unwrap();
         for field in &mut header.extra_field {
diff --git a/apk_frauder/src/main.rs b/apk_frauder/src/main.rs
index 124ab0c..12f6f25 100644
--- a/apk_frauder/src/main.rs
+++ b/apk_frauder/src/main.rs
@@ -1,10 +1,11 @@
-//use apk_frauder::ZipFileReader;
+use apk_frauder::ZipFileReader;
 use std::collections::HashMap;
 use std::env;
 use std::fs::File;
 use std::io::Cursor;
 
 fn main() {
+    /*
     apk_frauder::replace_dex(
         "app-release.apk",
         "app-instrumented.apk",
@@ -19,5 +20,8 @@ fn main() {
             env::var("HOME").expect("$HOME not set")
         )),
         None::<HashMap<String, Option<Cursor<&[u8]>>>>,
-    );
+    );*/
+    let file = File::open("zagruski.apk").unwrap();
+    let reader = ZipFileReader::new(file);
+    println!("{:#?}", &reader.files[..2]);
 }
diff --git a/apk_frauder/src/zip_reader.rs b/apk_frauder/src/zip_reader.rs
index e80beb1..0b2f8e2 100644
--- a/apk_frauder/src/zip_reader.rs
+++ b/apk_frauder/src/zip_reader.rs
@@ -1,4 +1,4 @@
-use log::warn;
+use log::{info, warn};
 use std::collections::HashMap;
 use std::io::{Read, Seek, SeekFrom};
 
@@ -275,8 +275,8 @@ impl<T: Read + Seek> ZipFileReader<T> {
         let mut lst_offset = 0;
         for file in files.iter() {
             if file.get_offset_local_header() != lst_offset {
-                println!(
-                    "Hole before {} between 0x{:x} and 0x{:x}",
+                info!(
+                    "Hole in zip before {} between 0x{:x} and 0x{:x}",
                     file.get_name(),
                     lst_offset,
                     file.get_offset_local_header()
@@ -288,8 +288,8 @@ impl<T: Read + Seek> ZipFileReader<T> {
         if let Some(apk_sign_block) = &self.apk_sign_block {
             let apk_sb_off = self.get_cd_offset() - apk_sign_block.size() as u64;
             if apk_sb_off != lst_offset {
-                println!(
-                    "Hole before apk signing block, between 0x{:x} and 0x{:x}",
+                info!(
+                    "Hole in zip before apk signing block, between 0x{:x} and 0x{:x}",
                     lst_offset, apk_sb_off
                 );
             }
@@ -297,8 +297,8 @@ impl<T: Read + Seek> ZipFileReader<T> {
             lst_offset = self.get_cd_offset();
         }
         if self.get_cd_offset() != lst_offset {
-            println!(
-                "Hole before central directory between 0x{:x} and 0x{:x}",
+            info!(
+                "Hole in zip before central directory between 0x{:x} and 0x{:x}",
                 lst_offset,
                 self.get_cd_offset()
             );