How To
Step-by-step tutorials to merge, split, rotate and edit PDFs, convert your photos and work with audio files.
How To
How to merge several audio files or MP3s into one
Join MP3s, combine voice messages, assemble the parts of a podcast or a lecture: merge audio files online in the order you want, trimming each file, with silences and fades between them.
Oct 28, 2026 · 4 min read
How To
How to trim an audio file or an MP3 online, for free
Shorten an MP3, cut out a passage, remove silence or make a ringtone: trim an audio file online, without software and without uploading it, with fades and a choice of MP3 quality.
Oct 28, 2026 · 4 min read
How To
How to add page numbers to a PDF (position, format, starting number)
Add page numbers to a PDF: choose the position, the "1 / 10" or "Page 1" format, start at a number other than 1, and avoid the usual pitfalls.
Oct 28, 2026 · 3 min read
How To
iPhone HEIC photos: how to convert them to JPG (and avoid the problem)
Why your iPhone saves HEIC photos, how to convert them to JPG on a computer or phone, and how to set up your iPhone so it never happens again.
Oct 28, 2026 · 4 min read
How To
How to convert JPG photos to PDF (one or several images)
Turn a photo, a receipt or several images into a single PDF, choose the order and the page size (A4, Letter), for free and without uploading your photos.
Oct 28, 2026 · 3 min read
How To
How to extract audio from a video: convert MP4 to MP3
Get the audio track of an MP4 video (lecture, meeting, interview, video podcast) as an MP3, online and without software, with the right habits on quality and rights.
Oct 28, 2026 · 4 min read
How To
How to convert a PDF to JPG (every page as an image)
Turn the pages of a PDF into JPG images to post them, add them to a presentation or send them in a chat, for free and right in your browser.
Oct 28, 2026 · 3 min read
How To
How to merge PDF files into one (free, no software needed)
Combine several PDFs into a single document, choose the order of the files, mix scans and invoices: the free, private online method, step by step.
Oct 28, 2026 · 4 min read
How To
How to rotate a PDF and save the rotation permanently
Fix a page scanned upside down or sideways, rotate a single page or the whole document, and save the rotation so every reader sees it.
Oct 28, 2026 · 3 min read
How To
How to split a PDF: extract pages or separate every page
Split a PDF into several files, extract a page range (1-3, 5, 8-10) or one page per file, for free and without uploading your documents.
Oct 28, 2026 · 3 min read
How To
How to edit a PDF without Acrobat: the complete 2026 guide
Change the text of a PDF, add an image or a signature, fix a typo, delete a page: every method, online and without installing software.
Oct 1, 2026 · 5 min read