#  `update_info_utf8`

Update PDF metadata from [`dump_data_utf8`](<dump_data_utf8.md>) instructions
## Usage
> pdftl `<input>` `update_info_utf8` `<metadata>` `output` `<filename>`

## Details
Updates the document-level metadata and structural
information of the input PDF by reading from a specified
metadata file (or stdin).

This operation is the direct counterpart to
[`dump_data_utf8`](<dump_data_utf8.md>). It is identical to [`update_info`](<update_info.md>), except
it assumes the input file contains raw UTF-8 strings that
have **not** been XML-escaped.

Use this operation if your metadata source file was created
by [`dump_data_utf8`](<dump_data_utf8.md>) or if you have manually created a
metadata file that contains raw, unescaped UTF-8 characters.

For a complete description of the input format this command
expects, see the help for [`dump_data`](<dump_data.md>).
## Examples

> Update utf-8 metadata according to meta.txt
```
pdftl in.pdf update_info_utf8 meta.txt output out.pdf
```


**Tags**: info, metadata

*Source: pdftl.operations.update_info*

*Read online: [https://pdftl.readthedocs.io/en/stable/operations/update_info_utf8.html](https://pdftl.readthedocs.io/en/stable/operations/update_info_utf8.html)*

*Type: Operation*