Bubixo Guides

Every guide here is written against the Bubixo tool it describes, using the formats, size limits and behaviour the live tool actually has. Where a tool has a real limitation, the guide says so rather than working around it.

Each article follows the same shape: a direct answer first, then the steps, a realistic example, and a short FAQ. If a tool processes your file in the browser rather than on a server, the guide tells you which one it is, because that difference matters more than any feature list.

All guides

• How to Compress a PDF Without Losing QualityWhich compression level to pick when an upload limit will not budge, and what actually gets lost.
• SRT vs VTT: What Is the Difference?The three small syntax differences that decide whether your player accepts a caption file.
• How to Remove Pages from a PDF OnlineDelete blank scanner sheets and duplicates, including how to get a range expression right.
• How to Add a Watermark to an ImagePosition, opacity and what to actually write in the mark, plus what a watermark cannot protect.
• How to Remove an Image Background with AIHow to judge a cut-out before you commit, and which photos are hard for any automatic tool.
• How to Summarize a Legal Document with AITriaging a long filing, with a clear account of what an AI summary must never be trusted for.
• How to Translate Subtitle FilesKeep the timing work someone already paid for, and review the three things that break in translation.
• How to Convert Video Formats Without Losing QualityContainer versus codec, and why converting once from your best source is the whole trick.
• How to Create an Audiobook from TextPreparing the text is where the quality comes from. What to clean up before you generate.
• How to Count Words and Characters OnlineSix counts, why they disagree with your word processor, and the limits worth knowing.

Browse the tools by category

The guides cover the tools people ask about most. The full catalogue is organised into six categories, and each category page lists every tool it contains along with what that tool accepts.

• Video ToolsConvert, trim, subtitle and narrate video files.
• Voice and Speech ToolsTurn text into speech and speech into text.
• Subtitle and Translation ToolsCreate, convert and translate caption files.
• PDF and Document ToolsConvert, merge, split, compress and summarise.
• Image ToolsCompress, convert, cut out and watermark images.
• Productivity ToolsCV building, QR codes, counters and calculators.

How to use these guides

If you already know which tool you need, go straight to its page from the category list above and the guide will be linked from there. If you are trying to work out whether Bubixo can do something at all, start with the guide: it states the supported formats and the size limits up front, so you can rule the tool in or out in about thirty seconds.

Guides are updated when the tools change. Anything a guide claims about a format, a limit or an output can be checked on the tool's own page, which is linked from every article.