penyuan

Many tools do not fully remove metadata, but just remove the link with in the metadata table. The data are thus still available in the PDF file itself.

While a lot of people rely on Exiftool to remove metadata, it actually does the same in PDFs. If you remove metadata with exiftool -all= some.pdf, you can always restore the data with exiftool -pdf-update:all= some.pdf.

There are several options to remove PDF metadata safely:

Option 1 : Exiftool with qpdf

Remove metadata with exiftool : exiftool -all= some.pdf
Then remove ununsed objects with qpdf : qpdf --linearize some.pdf - > some.cleaned.pdf

SVT-AV1 is the fastest multithreaded AV1 encoder
You can download up to date BtbN ffmpeg build with latest STV-AV1 code.

Aom-av1 is the official av1 decoder/encoder but it's the slowest and lacks of a real massive multithreading.
Rav1e is a xiph encoder project. It's also very slow but you can use multithreading with tiles.
Dav1d is a veryfast AV1 VLC decoder project.

Svt-av1 is an heavy multithreading intel decoder and encoder. It produce good quality but bigger file size.
It can produce 8 and 10 bit video with CRF (default), CQP, VBR and CBR (test).
Two pass are also available with standalone SvtAv1EncApp but not in ffmpeg.

How to add a collapsible section in markdown

1. Example

Click me

Heading

Foo
Bar
- Baz

Qux

The use of __main__.py to create executables

myprojectfolder/
    |_ __main__.py
    |_ __init__.py

Being __main__.py:

print("Hello")

	#!/usr/bin/env python3
	# -- coding: utf-8 --
	# vim:set ts=4 sw=4 et:

	# Copyright 2019 Artem Smirnov

	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at

	# An example to get the remaining rate limit using the Github GraphQL API.

	import requests

	headers = {"Authorization": "Bearer YOUR API KEY"}


	def run_query(query): # A simple function to use requests.post to make the API call. Note the json= section.
	request = requests.post('https://api.github.com/graphql', json={'query': query}, headers=headers)
	if request.status_code == 200:

	FROM debian:jessie

	ENV USER=boatswain USER_ID=1000 USER_GID=1000

	# now creating user
	RUN groupadd --gid "${USER_GID}" "${USER}" && \
	useradd \
	--uid ${USER_ID} \
	--gid ${USER_GID} \
	--create-home \