How to merge multiple files into one PDF
Drop several files in at once and they're combined into one PDF rather than converted separately. Mixed formats are fine — three images, a CSV and a Markdown file all merge into a single document, in the order you list them. There's no merge limit.
Takes about 2 min
Steps
Name your files so they sort in the right order
Prefix them with numbers — 01-cover.txt, 02-receipt.jpg, 03-data.csv. Alphabetical order then matches your intended order, which saves reordering later.
Open the extension and choose Upload Files
The drop zone accepts multiple files at once.
Drag all the files in together
They're combined in the order listed.
Choose one paper size and orientation for the set
If most of the content is wide — photos, spreadsheets, estimates — landscape usually reads better than portrait with letterboxed images.
Convert
You get one PDF containing everything.
Worth knowing
- Add a cover page by writing a plain .txt or .md file listing what's inside and including it as the first file. It takes four minutes and it's the page people actually use to navigate the document.
- Resize large images before merging. A phone photo is often several megabytes; twenty of them makes a document too large for most portal upload limits. Around 1500–2500px on the long edge is plenty for on-screen reading.
- Converting images to PDF does not preserve EXIF metadata such as capture date and GPS. Keep the original files if that information matters.
Questions
Can I merge different file types together?
Yes. Mixed formats are fine — images, CSV, Markdown, text and HTML files can all go into one PDF in a single pass, combined in the order you list them.
Is there a limit on how many files I can merge?
No merge limit. Very large batches are bounded only by your machine's memory, so if a huge merge stalls, do it in two passes.