File Converter - Convert 2000+ different audio, image, video, e-book, document, and archive conversions online. No software to install and free.

A collection of easy-to-use web tools for all your audio files

The WebM Project has been slowly getting more support from the browser community with Edge 14 adding support in the Anniversary edition of Windows 10. At the same time more .webm files are created by new HTML5 APIs like WebRTC when recording WebRTC sessions and the the MediaStream Recorder API.

Use ImageMagick® to create, edit, compose, and convert digital images. Resize an image, crop it, change its shades and colors, add captions, and more.

The magick identify program describes the format and characteristics of one or more image files:
https://imagemagick.org/script/identify.php

Pour réduire le poids de l'image en conservant la résolution:
convert input.jpg -auto-orient input.jpg
puis:
ffmpeg -i input.jpg output.jpg

Il y a encore plus cool que d'essayer de convertir quelqu'un à une autre religion : Convertir des fichiers dans d'autres formats :-) C'est carrément plus utile et moins fatigant. Grâce au site MConverter, vous allez pouvoir convertir n'importe quoi en n'importe quoi. Par exemple, une vidéo dans un autre format vidéo plus obscur, des…

Encoder et décoder du texte en morse.

Convertir une page web en ebook
Et bien grâce au site TXT Paper, il est possible de convertir le contenu de n’importe quel page web en livre numérique dans le format de votre choix : PDF, epub, mobi, markdown ou texte simple.

UTM, UTMRF/MGRS, CH1903, Gauss-Krueger, GK, NAC, W3W and WGS as decimal, decimal minutes or in degrees, minutes and seconds. | Large map | Coordinates to address

Le calendrier républicain a été en vigueur du 22 septembre 1792 au 31 décembre 1805. L'année était découpée en 12 mois de 30 jours (soit 360 jours), plus 5 à 6 jours complémentaires (selon les années) ajoutés en fin d'année.

Calendar Converter
https://www.fourmilab.ch/documents/calendar/

Éditez des fichiers PDF grâce à PDF Candy - un éditeur PDF en ligne gratuit. Convertissez un PDF en Word, un PDF en JPG, fusionnez un PDF, scindez un PDF, compressez un PDF, etc.

To get started on removing DRM from your ebooks, just download the tools archive from the link below. Unzip the archive, and start reading.

Aussi :
DRM Removal Tools for eBooks
https://apprenticealf.wordpress.com/2012/09/10/drm-removal-tools-for-ebooks/

Ebook Formats, DRM and You — A Guide for the Perplexed
https://apprenticealf.wordpress.com/2011/01/13/ebooks-formats-drm-and-you-%E2%80%94-a-guide-for-the-perplexed/

DeDRM_plugin.zip

This plugin will remove the DRM from:

• Kindle ebooks (files from Kindle for Mac/PC and eInk Kindles).
• Adobe Digital Editions (v2.0.1***) ePubs (including Kobo and Google ePubs downloaded to ADE)
• Adobe Digital Editions (v2.0.1) PDFs

For limitations and work-arounds, see the FAQ at https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md

Installation

Open calibre's Preferences dialog. Click on the "Plugins" button. Next, click on the button, "Load plugin from file". Navigate to the unzipped DeDRM_tools folder, find the file "DeDRM_plugin.zip". Click to select the file and select "Open". Click "Yes" in the "Are you sure?" dialog box. Click the "OK" button in the "Success" dialog box.

Customization

For Kindle ebooks from an E-Ink based Kindle (e.g. Voyage), or books downloaded from the Amazon web site 'for transfer via USB' to an E-Ink base Kindle, you must enter the Kindle's serial number in the customisation dialog.

When you have finished entering your configuration information, you must click the OK button to save it. If you click the Cancel button, all your changes in all the configuration dialogs will be lost.

Troubleshooting

If you find that the DeDRM plugin is not working for you (imported ebooks still have DRM - that is, they won't convert or open in the calibre ebook viewer), you should make a log of the import process by deleting the DRMed ebook from calibre and then adding the ebook to calibre when it's running in debug mode. This will generate a lot of helpful debugging info that can be copied into any online help requests. Here's how to do it:

• Remove the DRMed book from calibre.
• Click the Preferences drop-down menu and choose 'Restart in debug mode'.
• Once calibre has re-started, import the problem ebook.
• Now close calibre.

A log will appear that you can copy and paste into a comment at Apprentice Alf's blog, http://apprenticealf.wordpress.com/ or an issue at Apprentice Harper's repository, https://github.com/apprenticeharper/DeDRM_tools/issues . You should also give details of your computer, and how you obtained the ebook file.

Epubor Ultimate for Win is known as a professional program which allows to easily convert DRM-signed or DRM-free books to file formats supported by Kindle and

FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, runs, and passes our testing infrastructure FATE across Linux, Mac OS X, Microsoft Windows, the BSDs, Solaris, etc. under a wide variety of build environments, machine architectures, and configurations.