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feat(libreoffice): add PDF/A-4 to the pdfa form field - #1703

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henningda:pdf4
Oct 26, 2026
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This change adds PDF/A-4 conversion support.

The LibreOffice version in trixie-backports already supports PDF/A-4 conversion, so this is a rather trivial change just adding PDF/A-4 as a const, adding it to the switch, updating the error message, updating code comments, and adding a test.

Passes SelectPdfVersion=4 to LibreOffice when pdfa is set to PDF/A-4.
@gulien gulien added enhancement New feature or request libreoffice labels Oct 26, 2026
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gulien commented Oct 26, 2026

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Thanks @henningda!

@gulien
gulien merged commit 3d4f655 into gotenberg:main Oct 26, 2026
13 of 14 checks passed
hbjydev pushed a commit to hbjydev/phoebe that referenced this pull request Oct 27, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [gotenberg/gotenberg](https://github.com/gotenberg/gotenberg) | minor | `8.38.1` → `8.39.0` |

---

### Release Notes

<details>
<summary>gotenberg/gotenberg</summary>

### [`v8.39.0`](https://github.com/gotenberg/gotenberg/releases/tag/v8.39.0): 8.39.0

[Compare Source](gotenberg/gotenberg@v8.38.1...v8.39.0)

##### Security Fixes ⚠️

- **Reject ExifTool's `j` option alias and stop loading ExifTool config files.** The metadata check blocked `json` but not its alias `j`. A metadata key could import a JSON file carrying a `HardLink` pseudo-tag, plant `~/.ExifTool_config`, and have the next ExifTool run execute it as Perl. The keys `j`, `addtagsfromfile`, and `alltagsfromfile` now return `400`, and Gotenberg always runs ExifTool with `-config ""`.
- **Accept only `http://` and `https://` URLs on the URL routes.** The default deny-list only covered `file://`, so `devtools://devtools/bundled/devtools_app.html` loaded Chromium's privileged DevTools page, and `waitForExpression` ran there with access to local files. `/forms/chromium/convert/url` and `/forms/chromium/screenshot/url` now return `400` for any other scheme.
- **Apply path and `wss://` deny rules to WebSocket handshakes.** The pinning proxy matched CONNECT tunnels against `https://host:port`, so a deny rule anchored on a path, such as `^https?://host/`, or on `wss://` refused the plain request but let the handshake through. The proxy now matches tunnels against each scheme's root URL, and a handshake whose full URL is denied fails the conversion with a generic `403`.
- **Drop the compromised eMudhra roots** ([#&#8203;1699](gotenberg/gotenberg#1699)). The images trusted `emSign ECC Root CA - G3` and `AAA Certificate Services`, whose intermediates have recoverable private keys. The OS bundle now comes from `ca-certificates` `20250419+deb13u1`, the Java trust store used by PDFtk drops both roots, and Chromium 156 rejects them. Thanks [@&#8203;hrueger](https://github.com/hrueger).

##### New Features

- **`failOnConsoleMessageTypes` for Chromium** ([#&#8203;1667](gotenberg/gotenberg#1667)). Fails the conversion with `409` when the page logs a console message of one of the given types (`log`, `debug`, `info`, `warning`, `error`, `assert`). The response lists the messages. Thanks [@&#8203;jschneider](https://github.com/jschneider).
- **PDF/A-4** ([#&#8203;1703](gotenberg/gotenberg#1703)). The `pdfa` form field now accepts `PDF/A-4` on every route that supports it, through the LibreOffice PDF engine. Thanks [@&#8203;henningda](https://github.com/henningda).
- **`Gotenberg-Version` response header** ([#&#8203;1693](gotenberg/gotenberg#1693)). Set on every authenticated route, error responses included, and on webhook deliveries. It is not set on `401` responses or `/health` ([#&#8203;1694](gotenberg/gotenberg#1694)). Thanks [@&#8203;fragkakis](https://github.com/fragkakis).

##### Behavior Changes

- **The URL routes reject non-HTTP schemes.** `chrome://`, `devtools://`, `data:`, and any other scheme besides `http` and `https` now return `400`.
- **ExifTool ignores `~/.ExifTool_config`.** The metadata keys `j`, `addtagsfromfile`, and `alltagsfromfile` now return `400`. Prefix them with a group, for example `XMP:j`, to write a tag of that name.
- **The `XRECHNUNG` Factur-X profile embeds `xrechnung.xml`.** See the bug fix below.

##### Bug Fixes

- **Sporadic `502` on uploads behind HTTP/2 proxies** ([#&#8203;1112](gotenberg/gotenberg#1112)). Behind Cloud Run with an `h2c` port, the proxy sent large DATA frames, Go answered with a flood of WINDOW_UPDATE frames, and the proxy dropped the connection mid-upload. Gotenberg now advertises the 16 KiB HTTP/2 default frame size ([#&#8203;1700](gotenberg/gotenberg#1700)). Thanks [@&#8203;TessilimiTheo](https://github.com/TessilimiTheo) and [@&#8203;geoherna](https://github.com/geoherna).
- **No listener with absolute TLS paths** ([#&#8203;1690](gotenberg/gotenberg#1690)). Since 8.38.0, `--api-tls-cert-file` and `--api-tls-key-file` with absolute paths left Gotenberg running without accepting connections. Both paths work again, and a missing or unreadable file now fails the startup ([#&#8203;1691](gotenberg/gotenberg#1691)). Thanks [@&#8203;n-rodriguez](https://github.com/n-rodriguez).
- **Empty `stampSource` or `watermarkSource` returned `400`** ([#&#8203;1692](gotenberg/gotenberg#1692)). Since 8.36.0, a blank source failed the merge, split, Chromium, and LibreOffice routes. An empty source is skipped again. Thanks [@&#8203;APX403](https://github.com/APX403).
- **OIDC rejected `bearer` in lower case** ([#&#8203;1696](gotenberg/gotenberg#1696)). The Authorization scheme is now matched case-insensitively, as RFC 9110 requires. Thanks [@&#8203;MaxFreedomPollard](https://github.com/MaxFreedomPollard).
- **The `XRECHNUNG` Factur-X profile embedded `factur-x.xml`** ([#&#8203;1701](gotenberg/gotenberg#1701)). The spec requires `xrechnung.xml` for this profile, both as the embedded file and in `fx:DocumentFileName`. Other levels keep `factur-x.xml`. Thanks [@&#8203;nhh](https://github.com/nhh).

##### Chore

- Updated Chromium to `156.0.8078.47`.
- Updated pdfcpu to `v0.16.3` and bumped Go to `1.27.3`, which fix several HIGH CVEs in the Go standard library and `golang.org/x` modules ([#&#8203;1695](gotenberg/gotenberg#1695)). Thanks [@&#8203;sergeykad](https://github.com/sergeykad).
- Updated the AWS Lambda Web Adapter to `1.1.0`, which supports Lambda SnapStart ([#&#8203;1704](gotenberg/gotenberg#1704)). Thanks [@&#8203;michael-follmann](https://github.com/michael-follmann).
- Bumped golangci-lint to `v2.15.0`.
- Updated Go dependencies.

</details>

---

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xODEuNyIsInVwZGF0ZWRJblZlciI6IjQ0LjE4MS43IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJyZW5vdmF0ZS9jb250YWluZXIiLCJ0eXBlL21pbm9yIl19-->

Reviewed-on: https://git.hayden.moe/hayden/phoebe/pulls/1021
@henningda

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Thanks @henningda!

Thanks for the quick merge and release!

eleboucher pushed a commit to eleboucher/homelab that referenced this pull request Oct 31, 2026
… 8.39.0) (#2479)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [docker.io/gotenberg/gotenberg](https://github.com/gotenberg/gotenberg) | minor | `8.38.1` → `8.39.0` |

---

### Release Notes

<details>
<summary>gotenberg/gotenberg (docker.io/gotenberg/gotenberg)</summary>

### [`v8.39.0`](https://github.com/gotenberg/gotenberg/releases/tag/v8.39.0): 8.39.0

[Compare Source](gotenberg/gotenberg@v8.38.1...v8.39.0)

##### Security Fixes ⚠️

- **Reject ExifTool's `j` option alias and stop loading ExifTool config files.** The metadata check blocked `json` but not its alias `j`. A metadata key could import a JSON file carrying a `HardLink` pseudo-tag, plant `~/.ExifTool_config`, and have the next ExifTool run execute it as Perl. The keys `j`, `addtagsfromfile`, and `alltagsfromfile` now return `400`, and Gotenberg always runs ExifTool with `-config ""`.
- **Accept only `http://` and `https://` URLs on the URL routes.** The default deny-list only covered `file://`, so `devtools://devtools/bundled/devtools_app.html` loaded Chromium's privileged DevTools page, and `waitForExpression` ran there with access to local files. `/forms/chromium/convert/url` and `/forms/chromium/screenshot/url` now return `400` for any other scheme.
- **Apply path and `wss://` deny rules to WebSocket handshakes.** The pinning proxy matched CONNECT tunnels against `https://host:port`, so a deny rule anchored on a path, such as `^https?://host/`, or on `wss://` refused the plain request but let the handshake through. The proxy now matches tunnels against each scheme's root URL, and a handshake whose full URL is denied fails the conversion with a generic `403`.
- **Drop the compromised eMudhra roots** ([#&#8203;1699](gotenberg/gotenberg#1699)). The images trusted `emSign ECC Root CA - G3` and `AAA Certificate Services`, whose intermediates have recoverable private keys. The OS bundle now comes from `ca-certificates` `20250419+deb13u1`, the Java trust store used by PDFtk drops both roots, and Chromium 156 rejects them. Thanks [@&#8203;hrueger](https://github.com/hrueger).

##### New Features

- **`failOnConsoleMessageTypes` for Chromium** ([#&#8203;1667](gotenberg/gotenberg#1667)). Fails the conversion with `409` when the page logs a console message of one of the given types (`log`, `debug`, `info`, `warning`, `error`, `assert`). The response lists the messages. Thanks [@&#8203;jschneider](https://github.com/jschneider).
- **PDF/A-4** ([#&#8203;1703](gotenberg/gotenberg#1703)). The `pdfa` form field now accepts `PDF/A-4` on every route that supports it, through the LibreOffice PDF engine. Thanks [@&#8203;henningda](https://github.com/henningda).
- **`Gotenberg-Version` response header** ([#&#8203;1693](gotenberg/gotenberg#1693)). Set on every authenticated route, error responses included, and on webhook deliveries. It is not set on `401` responses or `/health` ([#&#8203;1694](gotenberg/gotenberg#1694)). Thanks [@&#8203;fragkakis](https://github.com/fragkakis).

##### Behavior Changes

- **The URL routes reject non-HTTP schemes.** `chrome://`, `devtools://`, `data:`, and any other scheme besides `http` and `https` now return `400`.
- **ExifTool ignores `~/.ExifTool_config`.** The metadata keys `j`, `addtagsfromfile`, and `alltagsfromfile` now return `400`. Prefix them with a group, for example `XMP:j`, to write a tag of that name.
- **The `XRECHNUNG` Factur-X profile embeds `xrechnung.xml`.** See the bug fix below.

##### Bug Fixes

- **Sporadic `502` on uploads behind HTTP/2 proxies** ([#&#8203;1112](gotenberg/gotenberg#1112)). Behind Cloud Run with an `h2c` port, the proxy sent large DATA frames, Go answered with a flood of WINDOW_UPDATE frames, and the proxy dropped the connection mid-upload. Gotenberg now advertises the 16 KiB HTTP/2 default frame size ([#&#8203;1700](gotenberg/gotenberg#1700)). Thanks [@&#8203;TessilimiTheo](https://github.com/TessilimiTheo) and [@&#8203;geoherna](https://github.com/geoherna).
- **No listener with absolute TLS paths** ([#&#8203;1690](gotenberg/gotenberg#1690)). Since 8.38.0, `--api-tls-cert-file` and `--api-tls-key-file` with absolute paths left Gotenberg running without accepting connections. Both paths work again, and a missing or unreadable file now fails the startup ([#&#8203;1691](gotenberg/gotenberg#1691)). Thanks [@&#8203;n-rodriguez](https://github.com/n-rodriguez).
- **Empty `stampSource` or `watermarkSource` returned `400`** ([#&#8203;1692](gotenberg/gotenberg#1692)). Since 8.36.0, a blank source failed the merge, split, Chromium, and LibreOffice routes. An empty source is skipped again. Thanks [@&#8203;APX403](https://github.com/APX403).
- **OIDC rejected `bearer` in lower case** ([#&#8203;1696](gotenberg/gotenberg#1696)). The Authorization scheme is now matched case-insensitively, as RFC 9110 requires. Thanks [@&#8203;MaxFreedomPollard](https://github.com/MaxFreedomPollard).
- **The `XRECHNUNG` Factur-X profile embedded `factur-x.xml`** ([#&#8203;1701](gotenberg/gotenberg#1701)). The spec requires `xrechnung.xml` for this profile, both as the embedded file and in `fx:DocumentFileName`. Other levels keep `factur-x.xml`. Thanks [@&#8203;nhh](https://github.com/nhh).

##### Chore

- Updated Chromium to `156.0.8078.47`.
- Updated pdfcpu to `v0.16.3` and bumped Go to `1.27.3`, which fix several HIGH CVEs in the Go standard library and `golang.org/x` modules ([#&#8203;1695](gotenberg/gotenberg#1695)). Thanks [@&#8203;sergeykad](https://github.com/sergeykad).
- Updated the AWS Lambda Web Adapter to `1.1.0`, which supports Lambda SnapStart ([#&#8203;1704](gotenberg/gotenberg#1704)). Thanks [@&#8203;michael-follmann](https://github.com/michael-follmann).
- Bumped golangci-lint to `v2.15.0`.
- Updated Go dependencies.

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xODEuOSIsInVwZGF0ZWRJblZlciI6IjQ0LjE4MS45IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Reviewed-on: https://git.erwanleboucher.dev/eleboucher/homelab/pulls/2479
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