diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..adf4aa5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+.svn
+.vscode
+
+*.app
+*.dmg
+.DS_Store
+
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..122dc7e
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,316 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+ "windows_x86_64_gnu",
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..b65b45d
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "dir-odt-to-pdf"
+version = "0.1.0"
+description = "Convert source directory with odt files to target path with pdf files"
+authors = ["Jesús Pérez <jpl@jesusperez.pro>"]
+edition = "2024"
+
+[dependencies]
+clap = { version = "4.5.38", features = ["derive"] }
+which = "7.0.3"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..596bb00
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,151 @@
+use clap::Parser;
+use std::fs;
+use std::path::{Path, PathBuf};
+use std::process::Command;
+use std::time::UNIX_EPOCH;
+use std::env;
+// use std::time::{SystemTime, UNIX_EPOCH};
+
+#[derive(Parser, Debug)]
+#[command(
+    author,
+    version,
+    about = "Convert source directory with odt files to target path with pdf files with changes verification"
+)]
+struct Args {
+    #[arg(help = "Source directory with .odt files")]
+    source: PathBuf,
+
+    #[arg(help = "Target directory for PDFs converted files")]
+    dest: PathBuf,
+}
+
+fn needs_conversion(odt_path: &Path, pdf_path: &Path) -> bool {
+    if !pdf_path.exists() {
+        return true;
+    }
+
+    let odt_modified = fs::metadata(odt_path)
+        .and_then(|m| m.modified())
+        .unwrap_or(UNIX_EPOCH);
+
+    let pdf_modified = fs::metadata(pdf_path)
+        .and_then(|m| m.modified())
+        .unwrap_or(UNIX_EPOCH);
+
+    odt_modified > pdf_modified
+}
+
+fn get_soffice_path() -> Result<String, String> {
+    // First try environment variable if set
+    if let Ok(path) = env::var("LIBREOFFICE_PATH") {
+        if Path::new(&path).exists() {
+            return Ok(path);
+        }
+    }
+
+    // Check common installation paths
+    let paths = if cfg!(target_os = "macos") {
+        vec![
+            "/Applications/LibreOffice.app/Contents/MacOS/soffice",
+            "/Applications/LibreOffice-still.app/Contents/MacOS/soffice",
+            "/Applications/LibreOffice-fresh.app/Contents/MacOS/soffice",
+        ]
+    } else {
+        vec![
+            "/usr/bin/soffice",
+            "/usr/local/bin/soffice",
+            "/usr/lib/libreoffice/program/soffice",
+            "soffice",  // Try PATH
+        ]
+    };
+
+    // Try each path
+    for path in paths {
+        if Path::new(path).exists() || which::which(path).is_ok() {
+            return Ok(path.to_string());
+        }
+    }
+
+    Err("LibreOffice not found. Please install LibreOffice or set LIBREOFFICE_PATH environment variable.".to_string())
+}
+
+fn convert_file(odt_path: &Path, dest_dir: &Path) -> Result<(), String> {
+    let soffice_path = get_soffice_path()?;
+    
+    // Verify input file exists and is readable
+    if !odt_path.exists() {
+        return Err(format!("Source file does not exist: {}", odt_path.display()));
+    }
+    
+    // Verify destination directory exists and is writable
+    if !dest_dir.exists() {
+        return Err(format!("Destination directory does not exist: {}", dest_dir.display()));
+    }
+    
+    // Try to get write permissions on destination directory
+    let metadata = fs::metadata(dest_dir)
+        .map_err(|e| format!("Failed to get destination directory metadata: {}", e))?; 
+    
+    #[cfg(unix)]
+    use std::os::unix::fs::PermissionsExt;
+    #[cfg(unix)]
+    if metadata.permissions().mode() & 0o200 == 0 {
+        return Err(format!("Destination directory is not writable: {}", dest_dir.display()));
+    }
+
+    let output = Command::new(&soffice_path)
+        .args(&[
+            "--headless",
+            "--convert-to",
+            "pdf",
+            "--outdir",
+            dest_dir.to_str().ok_or("Invalid destination path")?,
+            odt_path.to_str().ok_or("Invalid source path")?,
+        ])
+        .output()
+        .map_err(|e| format!("Failed to execute LibreOffice command: {}", e))?;
+
+    if !output.status.success() {
+        let error_msg = String::from_utf8_lossy(&output.stderr);
+        let stdout_msg = String::from_utf8_lossy(&output.stdout);
+        return Err(format!(
+            "Conversion failed:\nError: {}\nOutput: {}",
+            error_msg,
+            stdout_msg
+        ));
+    }
+
+    Ok(())
+}
+
+fn main() {
+    let args = Args::parse();
+
+    // Create target directory if not exists
+    if let Err(e) = fs::create_dir_all(&args.dest) {
+        eprintln!("Error create target directory: {}", e);
+        return;
+    }
+
+    // Process .odt files
+    if let Ok(entries) = fs::read_dir(&args.source) {
+        for entry in entries.flatten() {
+            let path = entry.path();
+            if path.extension().map_or(false, |ext| ext == "odt") {
+                let pdf_path = args.dest.join(
+                    path.file_stem()
+                        .map(|s| s.to_string_lossy() + ".pdf")
+                        .unwrap_or_default()
+                        .as_ref(),
+                );
+                if needs_conversion(&path, &pdf_path) {
+                    match convert_file(&path, &args.dest) {
+                        Ok(_) => println!("Converted: {:?}", path.file_name().unwrap_or_default()),
+                        Err(e) => eprintln!("Error: {} - {}", path.display(), e),
+                    }
+                }
+            }
+        }
+    }
+}