Hiroshi Kuwabara kuwabarahiroshi

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

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Last year I started playing around with using memoized private helper methods in my controllers instead of the traditional instance variable assigns we see in RoR controllers. Here's an example:

class PostsController < ApplicationController
  helper_method :new_post, :post, :posts
  
  def new; end
  def show; end
  def edit; end
 def index; end

	#
	# Building V8 for alpine is a real pain. We have to compile from source, because it has to be
	# linked against musl, and we also have to recompile some of the build tools as the official
	# build workflow tends to assume glibc by including vendored tools that link against it.
	#
	# The general strategy is this:
	#
	# 1. Build GN for alpine (this is a build dependency)
	# 2. Use depot_tools to fetch the V8 source and dependencies (needs glibc)
	# 3. Build V8 for alpine

	日付: 2017年10月25日 17:08
	件名: Steve Maddenでございます。

	ミヤモト様

	お世話になっております。

	IT業界に特化したヘッドハンター、Steve Maddenと申します。
	度々のご連絡、大変失礼いたします。

	#!/usr/bin/env node

	// Define hook in your config <hook src="scripts/cordova-google-services-version-gradle-fix.js" type="before_prepare" />

	var sourceDir = '';
	var platformDir = 'platforms/android';

	var fs = require('fs');
	var path = require('path');
	var readline = require("readline");

	# This task should be run inside an environment that is already configured to connect to the redis
	# instance that we're transfering AWAY FROM.
	#
	# The task should be handed the URL of the redis instance that we're MOVING TO.
	#
	# To run it and pass in the destination Redis you'd do something like this:
	# rake sidekiq:transfer[redis://...]
	#
	# As jobs are added to the destination Redis, they're deleted from the source Redis. This
	# allows the task to be restarted cleanly if it fails in the middle due to a network error

	class QueueSizeMetricWorker
	include Sidekiq::Worker
	include Sidetiq::Schedulable

	recurrence { minutely }
	sidekiq_options retry: false

	# Publish a custom metric on CloudWatch with the Sidekiq queue size
	def perform
	cloudwatch = Aws::CloudWatch::Client.new(