Answer by Benjamin James for Disable PDFBox logging with Springboot org.apache.commons.logging

This is the configuration file I ended up using. I didn't include any logging releated dependencies or add any exclusions to pdfbox dependency, just added this file to the folder containing the application.properties file.

Filename is logback-spring.xml

The flooding logger was copied from how to change log levels of 3rd party library in java

<property name="LOGS" value="./logs" />

<appender name="Console"
    class="ch.qos.logback.core.ConsoleAppender">
    <layout class="ch.qos.logback.classic.PatternLayout">
        <Pattern>
            %black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
        </Pattern>
    </layout>
</appender>

<appender name="RollingFile"
    class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${LOGS}/spring-boot-logger.log</file>
    <encoder
        class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
        <Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
    </encoder>

    <rollingPolicy
        class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <!-- rollover daily and when the file reaches 10 MegaBytes -->
        <fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log
        </fileNamePattern>
        <timeBasedFileNamingAndTriggeringPolicy
            class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
            <maxFileSize>10MB</maxFileSize>
        </timeBasedFileNamingAndTriggeringPolicy>
    </rollingPolicy>
</appender>

<!-- LOG everything at INFO level -->
<root level="info">
    <appender-ref ref="RollingFile" />
    <appender-ref ref="Console" />
</root>

<!-- LOG "com.baeldung*" at TRACE level -->
<logger name="org.apache" level="ERROR" additivity="false">
    <appender-ref ref="RollingFile" />
    <appender-ref ref="Console" />
</logger>

<logger name="flooding logger" level="ERROR" additivity="false">
  <appender-ref ref="Console"/>