Adobe created the PDF format, and Acrobat is the reference PDF software. This page compares the parts that matter for compressing a PDF, using Adobe’s own help pages, pricing page and Google Play listing. Prices vary by country and change over time.
At a glance
| PDFTuck | Adobe Acrobat | |
|---|---|---|
| What it is | Single-purpose Android compressor | Complete PDF software: read, edit, OCR, convert, sign, AI assistant |
| Compress on Android | Free | Needs an Acrobat subscription; levels High, Medium, Low |
| Online tool | None | Free online Compress PDF; High, Medium, Low; processed on Adobe’s servers |
| Desktop | None | “Reduced Size PDF” and PDF Optimizer with detailed controls |
| Type a target size | Yes, in KB or MB | Not verified in the pages checked |
| Where the PDF is processed | On the phone; not uploaded | Online: Adobe’s servers. Desktop: your computer. Android app: not verified |
| Account | None | Not needed to download from the online tool; needed for a subscription |
| Price | Free with ads | Reader is free; Acrobat Standard and Pro are subscriptions (US prices at the time of checking: Standard from US$14.99/month, Pro from US$19.99/month on annual plans) |
| Security statements | No certifications | SOC 2 Type 2, ISO 27001 and more for Acrobat’s online services (vendor-stated) |
| Availability | Closed testing; not yet public on Google Play | Available |
Where Acrobat is the better choice
- Quality-preserving optimisation. On desktop, PDF Optimizer gives control over images, fonts and other content, with an audit of what takes space. For complex documents this can keep more of the document intact than a phone app.
- Everything else you do with PDFs. Editing, OCR, forms, signing and review.
- Large files. Adobe’s online tool states support for files up to 2 GB.
- Enterprise assurances and a long track record.
Where PDFTuck works differently
- Free compression on Android, no subscription. Ads instead.
- A typed limit. You enter 200 KB or 2 MB; PDFTuck measures the result and tells you whether it fits.
- No upload. The PDF is compressed on the phone and works offline.
Things to know about PDFTuck
PDFTuck reduces size mainly by reducing images. To meet a small target, pages may be turned into images, so searchable text, links and form fields may not be kept, and digital signatures are not valid in the copy. Password-protected PDFs aren’t supported.
Which should you use?
If you already pay for Acrobat, or you need the best possible optimisation on a computer, use Acrobat. If you need a PDF under a portal’s limit on an Android phone, for free and without uploading it, PDFTuck does that one job.