PDFMove

Blog

Guides, tips and comparisons on processing PDFs, images, audio and video.

Guide

Why Was WMA Abandoned? A Guide to Rescuing Old Audio Archives

WMA was once the default audio format on Windows. Why did it disappear, is your old WMA archive still usable, and how do you rescue it? A technical explanation.

6 min read

Comparison

Ways to Convert WMA to MP3: Which Method Fits Your Archive?

Windows Media Player, VLC, command-line tools, and online converters compared. Which should you choose based on archive size and technical comfort level?

5 min read

How-To

How to Convert WMA to MP3: Rescuing Old Windows Audio Archives

How do you convert WMA files from old Windows Media Player rips into MP3? Step-by-step method, bitrate selection, the DRM problem, and batch conversion tips.

6 min read

Comparison

Convert WEBP to JPG or PNG? A Comparative Decision Guide

How do you choose between JPG and PNG when converting your WEBP file? A comparison based on transparency, file size, content type and intended use.

5 min read

Guide

Why Doesn't WEBP Open in Some Programs?

If your WEBP file opens in a browser but not in a desktop program, the reason is format support. The technical cause of this incompatibility and the practical ways around it.

6 min read

Guide

How Can WEBP Be Smaller Than JPG?

Where does WEBP's size advantage come from? How block prediction, variable block size and entropy coding differ from JPG — a technical but readable explanation.

5 min read

How-To

Converting a WEBP Image to JPG So It Opens Everywhere

If the WEBP file you downloaded will not open, converting it to JPG is the fastest fix. The steps, what to expect quality-wise, and the critical warning about transparency.

5 min read

Guide

Why Does the File Get Bigger When You Convert WEBP to PNG?

If your 300 KB WEBP file came out as several megabytes in PNG, that is not an error. The difference in how the two formats compress, and when this growth is an acceptable price.

5 min read

How-To

A Guide to Extracting MP3 Audio from WEBM Video

How do you take the audio out of the WEBM files you download from your browser as MP3? The rules for working with an Opus source, the right bitrate and troubleshooting.

6 min read

Guide

What Does Converting the Opus Audio in WEBM to MP3 Actually Mean?

What is Opus, why did it become the standard audio codec of the WEBM container, and what exactly is lost when it is converted to MP3? We explain the move from a modern codec to an older one.

6 min read

Guide

What Is WEBM? How the VP8, VP9 and AV1 Codecs Work

What is inside the WEBM container, what is the difference between VP9 and AV1, and why can these codecs not be moved straight into MP4? We explain the open side of web video.

6 min read

Comparison

WEBM or MP4? The Choice Between Compatibility and File Size

WEBM is smaller, MP4 opens everywhere. Which one should you leave your video in? We weigh both formats' advantages honestly and offer a clear decision framework.

6 min read

Comparison

WEBM Audio Extraction: Stay on Opus, or Move to MP3?

There is a real choice between leaving the audio in your WEBM file as Opus and converting it to MP3. A comparison across quality, compatibility and usage scenario.

6 min read

How-To

How to Convert a WEBM File to MP4: A Step-by-Step Practical Guide

Your WEBM video won't open on your phone or on social media? Here are the steps to convert it to MP4, why the conversion requires re-encoding, and a checklist.

6 min read

Comparison

Publishing on the Web: HEIC to WEBP or to JPG?

When publishing iPhone photos on a website, should you convert HEIC to WEBP or to JPG? A comparison across file size, browser support and transparency.

5 min read

Comparison

JPG or AVIF for Website Images?

Should you stay with JPG for site images or move to AVIF? An honest comparison of the speed gain, the compatibility risk, the workload and the fallback delivery strategy.

5 min read

Comparison

PNG or JPG for Website Images: How to Choose

A guide to picking the right image format without dragging down page speed. Which content type wins with PNG, which wins with JPG, and what to look at when deciding.

5 min read

Guide

What Is WAV and Why Is It Considered a Lossless Audio Format?

Why are WAV files so large, what exactly does 'lossless' mean, and is WAV extracted from video really higher quality? We explain the concept from the ground up.

7 min read

Guide

Choosing a Bitrate for WAV to MP3: What 128, 192 and 320 kbps Really Mean

How MP3 bitrate determines sound quality and file size, the difference between constant and variable bitrate, picking the right value by content type, and common misconceptions.

5 min read

How-To

How to Convert WAV to MP3: A Step-by-Step Guide

Steps for converting WAV files to MP3: choosing the right bitrate, adding tag information, and what to watch for when converting in bulk.

5 min read

Comparison

WAV or MP3? Which One to Use and When

The real differences between WAV and MP3: size, quality, compatibility, editability, and tag support — plus a decision guide for recording, archiving, sharing, and publishing.

5 min read

Comparison

WAV or FLAC for Archiving? A Long-Term Storage Comparison

Which format should hold your audio archive? WAV and FLAC compared on storage cost, metadata durability, integrity verification, and format longevity.

7 min read

Guide

How Can FLAC Compression Be Lossless? A Counterintuitive Explanation

How does a file lose no information while shrinking by half? Linear prediction, residual coding, entropy, and the mathematics of FLAC compression made understandable.

7 min read

How-To

How to Convert WAV to FLAC: The Lossless Way to Save Space

Halve your storage by converting WAV files to FLAC: step-by-step guide, choosing a compression level, adding tags, and verifying the result.

6 min read