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# Administration
## Making backups {#backup}
Multiple options exist for making backups of your paperless instance,
depending on how you installed paperless.
Before making a backup, it's probably best to make sure that paperless is not actively
consuming documents at that time.
Options available to any installation of paperless:
- Use the [document exporter](#exporter). The document exporter exports all your documents,
thumbnails, metadata, and database contents to a specific folder. You may import your
documents and settings into a fresh instance of paperless again or store your
documents in another DMS with this export.
The document exporter is also able to update an already existing
export. Therefore, incremental backups with `rsync` are entirely
possible.
The exporter does not include API tokens and they will need to be re-generated after importing.
!!! caution
You cannot import the export generated with one version of paperless in
a different version of paperless. The export contains an exact image of
the database, and migrations may change the database layout.
Options available to docker installations:
- Backup the docker volumes. These usually reside within
`/var/lib/docker/volumes` on the host and you need to be root in
order to access them.
Paperless uses 4 volumes:
- `paperless_media`: This is where your documents are stored.
- `paperless_data`: This is where auxiliary data is stored. This
folder also contains the SQLite database, if you use it.
- `paperless_pgdata`: Exists only if you use PostgreSQL and
contains the database.
- `paperless_dbdata`: Exists only if you use MariaDB and contains
the database.
Options available to bare-metal and non-docker installations:
- Backup the entire paperless folder. This ensures that if your
paperless instance crashes at some point or your disk fails, you can
simply copy the folder back into place and it works.
When using PostgreSQL or MariaDB, you'll also have to backup the
database.
### Restoring {#migrating-restoring}
If you've backed-up Paperless-ngx using the [document exporter](#exporter),
restoring can simply be done with the [document importer](#importer).
Of course, other backup strategies require restoring any volumes, folders and database
copies you created in the steps above.
## Updating Paperless {#updating}
### Docker Route {#docker-updating}
If a new release of paperless-ngx is available, upgrading depends on how
you installed paperless-ngx in the first place. The releases are
available at the [release
page](https://github.com/paperless-ngx/paperless-ngx/releases).
First of all, make sure no active processes (like consumption) are running, then [make a backup](#backup).
After that, ensure that paperless is stopped:
```shell-session
$ cd /path/to/paperless
$ docker compose down
```
1. If you pull the image from the docker hub, all you need to do is:
```shell-session
docker compose pull
docker compose up
```
The Docker Compose files refer to the `latest` version, which is
always the latest stable release.
1. If you built the image yourself, do the following:
```shell-session
git pull
docker compose build
docker compose up
```
Running `docker compose up` will also apply any new database migrations.
If you see everything working, press CTRL+C once to gracefully stop
paperless. Then you can start paperless-ngx with `-d` to have it run in
the background.
!!! note
In version 0.9.14, the update process was changed. In 0.9.13 and
earlier, the Docker Compose files specified exact versions and pull
won't automatically update to newer versions. In order to enable
updates as described above, either get the new `docker-compose.yml`
file from
[here](https://github.com/paperless-ngx/paperless-ngx/tree/main/docker/compose)
or edit the `docker-compose.yml` file, find the line that says
```
image: ghcr.io/paperless-ngx/paperless-ngx:0.9.x
```
and replace the version with `latest`:
```
image: ghcr.io/paperless-ngx/paperless-ngx:latest
```
!!! note
In version 1.7.1 and onwards, the Docker image can now be pinned to a
release series. This is often combined with automatic updaters such as
Watchtower to allow safer unattended upgrading to new bugfix releases
only. It is still recommended to always review release notes before
upgrading. To pin your install to a release series, edit the
`docker-compose.yml` find the line that says
```
image: ghcr.io/paperless-ngx/paperless-ngx:latest
```
and replace the version with the series you want to track, for
example:
```
image: ghcr.io/paperless-ngx/paperless-ngx:1.7
```
### Bare Metal Route {#bare-metal-updating}
After grabbing the new release and unpacking the contents, do the
following:
1. Update dependencies. New paperless version may require additional
dependencies. The dependencies required are listed in the section
about
[bare metal installations](setup.md#bare_metal).
2. Update python requirements. Keep in mind to activate your virtual
environment before that, if you use one.
```shell-session
pip install -r requirements.txt
```
!!! note
At times, some dependencies will be removed from requirements.txt.
Comparing the versions and removing no longer needed dependencies
will keep your system or virtual environment clean and prevent
possible conflicts.
3. Migrate the database.
```shell-session
cd src
python3 manage.py migrate # (1)
```
1. Including `sudo -Hu <paperless_user>` may be required
This might not actually do anything. Not every new paperless version
comes with new database migrations.
### Database Upgrades
Paperless-ngx is compatible with Django-supported versions of PostgreSQL and MariaDB and it is generally
safe to update them to newer versions. However, you should always take a backup and follow
the instructions from your database's documentation for how to upgrade between major versions.
!!! note
As of Paperless-ngx v2.18, the minimum supported version of PostgreSQL is 14.
For PostgreSQL, refer to [Upgrading a PostgreSQL Cluster](https://www.postgresql.org/docs/current/upgrading.html).
For MariaDB, refer to [Upgrading MariaDB](https://mariadb.com/kb/en/upgrading/)
You may also use the exporter and importer with the `--data-only` flag, after creating a new database with the updated version of PostgreSQL or MariaDB.
!!! warning
You should not change any settings, especially paths, when doing this or there is a
risk of data loss
## Management utilities {#management-commands}
Paperless comes with some management commands that perform various
maintenance tasks on your paperless instance. You can invoke these
commands in the following way:
With Docker Compose, while paperless is running:
```shell-session
$ cd /path/to/paperless
$ docker compose exec webserver <command> <arguments>
```
With docker, while paperless is running:
```shell-session
$ docker exec -it <container-name> <command> <arguments>
```
Bare metal:
```shell-session
$ cd /path/to/paperless/src
$ python3 manage.py <command> <arguments> # (1)
```
1. Including `sudo -Hu <paperless_user>` may be required
All commands have built-in help, which can be accessed by executing them
with the argument `--help`.
### Document exporter {#exporter}
The document exporter exports all your data (including your settings
and database contents) from paperless into a folder for backup or
migration to another DMS.
If you use the document exporter within a cronjob to backup your data
you might use the `-T` flag behind exec to suppress "The input device
is not a TTY" errors. For example:
`docker compose exec -T webserver document_exporter ../export`
```
document_exporter target [-c] [-d] [-f] [-na] [-nt] [-p] [-sm] [-z]
optional arguments:
-c, --compare-checksums
-cj, --compare-json
-d, --delete
-f, --use-filename-format
-na, --no-archive
-nt, --no-thumbnail
-p, --use-folder-prefix
-sm, --split-manifest
-z, --zip
-zn, --zip-name
--data-only
--no-progress-bar
--passphrase
```
`target` is a folder to which the data gets written. This includes
documents, thumbnails and a `manifest.json` file. The manifest contains
all metadata from the database (correspondents, tags, etc).
When you use the provided docker compose script, specify `../export` as
the target. This path inside the container is automatically mounted on
your host on the folder `export`.
If the target directory already exists and contains files, paperless
will assume that the contents of the export directory are a previous
export and will attempt to update the previous export. Paperless will
only export changed and added files. Paperless determines whether a file
has changed by inspecting the file attributes "date/time modified" and
"size". If that does not work out for you, specify `-c` or
`--compare-checksums` and paperless will attempt to compare file
checksums instead. This is slower. The manifest and metadata json files
are always updated, unless `cj` or `--compare-json` is specified.
Paperless will not remove any existing files in the export directory. If
you want paperless to also remove files that do not belong to the
current export such as files from deleted documents, specify `-d` or `--delete`.
Be careful when pointing paperless to a directory that already contains
other files.
The filenames generated by this command follow the format
`[date created] [correspondent] [title].[extension]`. If you want
paperless to use [`PAPERLESS_FILENAME_FORMAT`](configuration.md#PAPERLESS_FILENAME_FORMAT) for exported filenames
instead, specify `-f` or `--use-filename-format`.
If `-na` or `--no-archive` is provided, no archive files will be exported,
only the original files.
If `-nt` or `--no-thumbnail` is provided, thumbnail files will not be exported.
!!! note
When using the `-na`/`--no-archive` or `-nt`/`--no-thumbnail` options
the exporter will not output these files for backup. After importing,
the [sanity checker](#sanity-checker) will warn about missing thumbnails and archive files
until they are regenerated with `document_thumbnails` or [`document_archiver`](#archiver).
It can make sense to omit these files from backup as their content and checksum
can change (new archiver algorithm) and may then cause additional used space in
a deduplicated backup.
If `-p` or `--use-folder-prefix` is provided, files will be exported
in dedicated folders according to their nature: `archive`, `originals`,
`thumbnails` or `json`
If `-sm` or `--split-manifest` is provided, information about document
will be placed in individual json files, instead of a single JSON file. The main
manifest.json will still contain application wide information (e.g. tags, correspondent,
document type, etc)
If `-z` or `--zip` is provided, the export will be a zip file
in the target directory, named according to the current local date or the
value set in `-zn` or `--zip-name`.
If `--data-only` is provided, only the database will be exported. This option is intended
to facilitate database upgrades without needing to clean documents and thumbnails from the media directory.
If `--no-progress-bar` is provided, the progress bar will be hidden, rendering the
exporter quiet. This option is useful for scripting scenarios, such as when using the
exporter with `crontab`.
If `--passphrase` is provided, it will be used to encrypt certain fields in the export. This value
must be provided to import. If this value is lost, the export cannot be imported.
!!! warning
If exporting with the file name format, there may be errors due to
your operating system's maximum path lengths. Try adjusting the export
target or consider not using the filename format.
### Document importer {#importer}
The document importer takes the export produced by the [Document
exporter](#exporter) and imports it into paperless.
The importer works just like the exporter. You point it at a directory or the generated .zip file,
and the script does the rest of the work:
```shell
document_importer source
```
| Option | Required | Default | Description |
| ------------------- | -------- | ------- | ------------------------------------------------------------------------- |
| source | Yes | N/A | The directory containing an export |
| `--no-progress-bar` | No | False | If provided, the progress bar will be hidden |
| `--data-only` | No | False | If provided, only import data, do not import document files or thumbnails |
| `--passphrase` | No | N/A | If your export was encrypted with a passphrase, must be provided |
When you use the provided docker compose script, put the export inside
the `export` folder in your paperless source directory. Specify
`../export` as the `source`.
!!! note
Importing from a previous version of Paperless may work, but for best
results it is suggested to match the versions.
!!! warning
The importer should be run against a completely empty installation (database and directories) of Paperless-ngx.
If using a data only import, only the database must be empty.
### Document retagger {#retagger}
Say you've imported a few hundred documents and now want to introduce a
tag or set up a new correspondent, and apply its matching to all of the
currently-imported docs. This problem is common enough that there are
tools for it.
```
document_retagger [-h] [-c] [-T] [-t] [-i] [--id-range] [--use-first] [-f]
optional arguments:
-c, --correspondent
-T, --tags
-t, --document_type
-s, --storage_path
-i, --inbox-only
--id-range
--use-first
-f, --overwrite
```
Run this after changing or adding matching rules. It'll loop over all
of the documents in your database and attempt to match documents
according to the new rules.
Specify any combination of `-c`, `-T`, `-t` and `-s` to have the
retagger perform matching of the specified metadata type. If you don't
specify any of these options, the document retagger won't do anything.
Specify `-i` to have the document retagger work on documents tagged with
inbox tags only. This is useful when you don't want to mess with your
already processed documents.
Specify `--id-range 1 100` to have the document retagger work only on a
specific range of document id´s. This can be useful if you have a lot of
documents and want to test the matching rules only on a subset of
documents.
When multiple document types or correspondents match a single document,
the retagger won't assign these to the document. Specify `--use-first`
to override this behavior and just use the first correspondent or type
it finds. This option does not apply to tags, since any amount of tags
can be applied to a document.
Finally, `-f` specifies that you wish to overwrite already assigned
correspondents, types and/or tags. The default behavior is to not assign
correspondents and types to documents that have this data already
assigned. `-f` works differently for tags: By default, only additional
tags get added to documents, no tags will be removed. With `-f`, tags
that don't match a document anymore get removed as well.
### Managing the Automatic matching algorithm
The _Auto_ matching algorithm requires a trained neural network to work.
This network needs to be updated whenever something in your data
changes. The docker image takes care of that automatically with the task
scheduler. You can manually renew the classifier by invoking the
following management command:
```
document_create_classifier
```
This command takes no arguments.
### Document thumbnails {#thumbnails}
Use this command to re-create document thumbnails. Optionally include the ` --document {id}` option to generate thumbnails for a specific document only.
You may also specify `--processes` to control the number of processes used to generate new thumbnails. The default is to utilize
a quarter of the available processors.
```
document_thumbnails
```
### Managing the document search index {#index}
The document search index is responsible for delivering search results
for the website. The document index is automatically updated whenever
documents get added to, changed, or removed from paperless. However, if
the search yields non-existing documents or won't find anything, you
may need to recreate the index manually.
```
document_index {reindex,optimize}
```
Specify `reindex` to have the index created from scratch. This may take
some time.
Specify `optimize` to optimize the index. This updates certain aspects
of the index and usually makes queries faster and also ensures that the
autocompletion works properly. This command is regularly invoked by the
task scheduler.
### Clearing the database read cache
If the database read cache is enabled, **you must run this command** after making any changes to the database outside the application context.
This includes operations such as restoring a database backup or executing SQL statements like UPDATE, INSERT, DELETE, ALTER, CREATE, or DROP.
Failing to invalidate the cache after such modifications can lead to stale data being served from the cache, and **may cause data corruption** or inconsistent behavior in the application.
Use the following management command to clear the cache:
```
python3 manage.py invalidate_cachalot
```
!!! info
The database read cache is based on Django-Cachalot. You can refer to their [documentation](https://django-cachalot.readthedocs.io/en/latest/quickstart.html#manage-py-command).
### Managing filenames {#renamer}
If you use paperless' feature to
[assign custom filenames to your documents](advanced_usage.md#file-name-handling), you can use this command to move all your files after
changing the naming scheme.
!!! warning
Since this command moves your documents, it is advised to do a backup
beforehand. The renaming logic is robust and will never overwrite or
delete a file, but you can't ever be careful enough.
```
document_renamer
```
The command takes no arguments and processes all your documents at once.
Learn how to use
[Management Utilities](#management-commands).
### Sanity checker {#sanity-checker}
Paperless has a built-in sanity checker that inspects your document
collection for issues.
The issues detected by the sanity checker are as follows:
- Missing original files.
- Missing archive files.
- Inaccessible original files due to improper permissions.
- Inaccessible archive files due to improper permissions.
- Corrupted original documents by comparing their checksum against
what is stored in the database.
- Corrupted archive documents by comparing their checksum against what
is stored in the database.
- Missing thumbnails.
- Inaccessible thumbnails due to improper permissions.
- Documents without any content (warning).
- Orphaned files in the media directory (warning). These are files
that are not referenced by any document in paperless.
```
document_sanity_checker
```
The command takes no arguments. Depending on the size of your document
archive, this may take some time.
### Fetching e-mail
Paperless automatically fetches your e-mail every 10 minutes by default.
If you want to invoke the email consumer manually, call the following
management command:
```
mail_fetcher
```
The command takes no arguments and processes all your mail accounts and
rules.
!!! tip
To use OAuth access tokens for mail fetching,
select the box to indicate the password is actually
a token when creating or editing a mail account. The
details for creating a token depend on your email
provider.
### Creating archived documents {#archiver}
Paperless stores archived PDF/A documents alongside your original
documents. These archived documents will also contain selectable text
for image-only originals. These documents are derived from the
originals, which are always stored unmodified. If coming from an earlier
version of paperless, your documents won't have archived versions.
This command creates PDF/A documents for your documents.
```
document_archiver --overwrite --document <id>
```
This command will only attempt to create archived documents when no
archived document exists yet, unless `--overwrite` is specified. If
`--document <id>` is specified, the archiver will only process that
document.
!!! note
This command essentially performs OCR on all your documents again,
according to your settings. If you run this with
`PAPERLESS_OCR_MODE=redo`, it will potentially run for a very long time.
You can cancel the command at any time, since this command will skip
already archived versions the next time it is run.
!!! note
Some documents will cause errors and cannot be converted into PDF/A
documents, such as encrypted PDF documents. The archiver will skip over
these documents each time it sees them.
### Managing encryption {#encryption}
!!! warning
Encryption was removed in [paperless-ng 0.9](changelog.md#paperless-ng-090)
because it did not really provide any additional security, the passphrase
was stored in a configuration file on the same system as the documents.
Furthermore, the entire text content of the documents is stored plain in
the database, even if your documents are encrypted. Filenames are not
encrypted as well. Finally, the web server provides transparent access to
your encrypted documents.
Consider running paperless on an encrypted filesystem instead, which
will then at least provide security against physical hardware theft.
#### Enabling encryption
Enabling encryption is no longer supported.
#### Disabling encryption
Basic usage to disable encryption of your document store:
(Note: If `PAPERLESS_PASSPHRASE` isn't set already, you need to specify
it here)
```
decrypt_documents [--passphrase SECR3TP4SSPHRA$E]
```
### Detecting duplicates {#fuzzy_duplicate}
Paperless already catches and prevents upload of exactly matching documents,
however a new scan of an existing document may not produce an exact bit for bit
duplicate. But the content should be exact or close, allowing detection.
This tool does a fuzzy match over document content, looking for
those which look close according to a given ratio.
At this time, other metadata (such as correspondent or type) is not
taken into account by the detection.
```
document_fuzzy_match [--ratio] [--processes N]
```
| Option | Required | Default | Description |
| ----------- | -------- | ------------------- | ------------------------------------------------------------------------------------------------------------------------------ |
| --ratio | No | 85.0 | a number between 0 and 100, setting how similar a document must be for it to be reported. Higher numbers mean more similarity. |
| --processes | No | 1/4 of system cores | Number of processes to use for matching. Setting 1 disables multiple processes |
| --delete | No | False | If provided, one document of a matched pair above the ratio will be deleted. |
!!! warning
If providing the `--delete` option, it is highly recommended to have a backup.
While every effort has been taken to ensure proper operation, there is always the
chance of deletion of a file you want to keep.
### Prune history (audit log) entries {#prune-history}
If the audit log is enabled Paperless-ngx keeps an audit log of all changes made to documents. Functionality to automatically remove entries for deleted documents was added but
entries created prior to this are not removed. This command allows you to prune the audit log of entries that are no longer needed.
```shell
prune_audit_logs
```
### Create superuser {#create-superuser}
If you need to create a superuser, use the following command:
```shell
createsuperuser
```