What order should PDFs be merged?

Cover letter first, then main document, then appendices. Rename files before merge if your tool sorts alphabetically.

Will merge increase file size?

Usually yes — sum of inputs minus shared resources. Compress after merge if email limits apply.

Browser merge tools often flatten bookmarks; keep originals if you need navigation.

Our linked tools process files locally in the browser without server upload.

workflow · pdf

Merge multiple PDFs in the right order, check file size for email, and avoid common merge mistakes. Free browser tools.

Updated 2026-05-26

Order files correctly Rename or sort invoices/chapters before merge — reordering after merge is painful.
Merge in browser Combine PDFs client-side; nothing uploads to a server. Open tool →
Compress if over limit Gmail ~25 MB cap — compress merged output or split with pdf-split. Open tool →

Preset: optimized export

What order should PDFs be merged?: Cover letter first, then main document, then appendices. Rename files before merge if your tool sorts alphabetically.
Will merge increase file size?: Usually yes — sum of inputs minus shared resources. Compress after merge if email limits apply.
Are bookmarks preserved?: Browser merge tools often flatten bookmarks; keep originals if you need navigation.
Is merging secure?: Our linked tools process files locally in the browser without server upload.