PDF Arranger and Sejda answer the same frustration — “my PDF is almost right” — from opposite sides of one line: where your file is processed. PDF Arranger is a free desktop app that arranges pages locally and offline. Sejda is an online PDF service (with desktop apps in its paid plans) whose editor can change the actual content of a page: edit text, fill forms, sign, and more. If you only need pages in a different order, the tools overlap. The moment you need to change what is on a page, they stop being alternatives at all.
At a glance
| PDF Arranger 1.14.0 | Sejda | |
|---|---|---|
| Price | Free, open source, no limits set by a service | Free layer with hourly limits; Week Pass $5, Web Monthly $7.50/month, Desktop+Web Annual $63/year (US pricing, checked October 2026) |
| Platforms | Windows and Linux desktop; macOS only via Nix | Web in a browser; Windows and Mac desktop apps on paid plans |
| Where files are processed | On your computer, fully offline — nothing is uploaded | Uploaded to Sejda’s servers for the web tools |
| Page organizing | Core strength: visual drag-and-drop merge, split, reorder, rotate, crop | Included among its tools |
| Edit text, fill forms, sign | No — none of these | Yes — these are Sejda’s headline strengths |
| Compress | No | Yes |
| Booklet | Yes — generate and split booklet layouts | Not officially documented |
| Account | No account, ever | Free layer works without registration, within its hourly limits |
The core divide: upload vs. local
Everything else in this comparison flows from one fact. With PDF Arranger, your document never leaves your machine: there is no upload, no account, and no server that could keep, lose or expose the file. For contracts, tax records, ID scans and anything under an NDA, that is not a preference, it is the requirement. Sejda’s web tools work the other way — the file goes to their servers to be processed. Plenty of people are comfortable with that for everyday documents, and Sejda is a well-known service; but it is a decision to make deliberately, not by default. You can read more on Sejda’s official site.
What Sejda does that PDF Arranger cannot
Sejda is a genuine editor. You can correct a typo in the text, fill in a form, add a signature, or white out a passage — jobs PDF Arranger flatly cannot do, because it only moves whole pages around. Sejda also compresses PDFs, which PDF Arranger does not offer in any form. If your recurring job is “fix the content” rather than “fix the order”, Sejda is the right category of tool and PDF Arranger is not a substitute.
The free layer, honestly
Sejda is free forever at the entry level, but the free layer is limited — the official pricing page describes hourly limits on tasks, alongside page and file-size limits, and the exact allowances should be read on that page on the day you rely on them. Paid plans remove those ceilings: a Week Pass costs $5, the Web Monthly plan is $7.50 per user per month, and the Desktop+Web Annual plan is $63 per user per year (US pricing, checked October 2026). PDF Arranger has no equivalent meter running: it is free software, so the thousandth document costs the same as the first — nothing.
Verdict: who should choose which
- Choose Sejda if you need to edit text, fill a form or sign a document right now, without installing anything, and the document is not sensitive.
- Choose PDF Arranger if your job is organizing pages — merging, splitting, reordering, booklets — and you want it local, offline, unlimited and free.
- Need editing regularly, but uploads are the problem? A desktop editor keeps files on your machine while still editing and signing: see Adobe Acrobat (sponsored) or Wondershare PDFelement (sponsored).
Disclosure: the editor links in this section are sponsored affiliate links — if you buy through them, this site may earn a commission at no extra cost to you. See our Affiliate Disclosure. Sejda has no affiliate relationship with this site; it is linked above as a plain reference only.