Smallpdf

smallpdf.com ↗

Convert, annotate, and organize PDFs in a browser

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SI Score: 80/100
Pricing: Freemium AI reading, not confirmed
Free plan: Yes AI reading, not confirmed
Sign-up required: Not confirmed

PDF Annotation PDF Conversion pdf-compression

Ask SI about Smallpdf

Answers use saved listing facts and recorded sources.

What it does

Smallpdf combines PDF conversion, compression, page organization, annotation, and signing tools. It also offers mobile scanning and document management across devices.

For a smaller attachment, upload the document, choose Basic compression and download or share the result. Moderate and Strong compression are Pro options. The compression page says signup is unnecessary for this browser task and files are deleted after one hour. Free access still has download limits; Pro adds broader access, OCR and text editing. Review the compressed result at its intended reading size before sending an image-heavy file.

Strengths

Connects routine PDF changes with conversion and signing tasks.

Best for

Finishing PDF attachments and forms without a desktop editor

Sources

Smallpdf - A Free Solution to all your PDF Problems (Oct 26, 2026)
Smallpdf Pricing and Plans (Oct 26, 2026)
Compress PDF: Reduce PDF File Size with Free Compressor (Oct 26, 2026)

SI Score

80/100

#1 in PDF Tools

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 80

Evidence

The compression page completes upload, level selection, compression and download/share, distinguishes free Basic from Pro levels and states no-signup access. Numeric free allowances and account storage remain outside that bounded task.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

smallpdf.com/
- PricingAI reading, not confirmedChecked Oct 26, 2026
  The homepage advertises free PDF tools, paid Pro and Team plans, and a time-limited unlimited trial.
- Product usefulness evidenceChecked Oct 26, 2026
smallpdf.com/pricing
- Free planAI reading, not confirmedChecked Oct 26, 2026
  The pricing page explicitly lists a Free plan with limited downloads and mobile access.
- Product usefulness evidenceChecked Oct 26, 2026
smallpdf.com/compress-pdf
- PlatformsAI reading, not confirmedChecked Oct 26, 2026
  The compressor is explicitly cloud/browser-based without installation.
- Product usefulness evidenceChecked Oct 26, 2026

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