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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | 123apps.com | pdfresizer.com | Switch / compare |
|---|---|---|---|
| PDF to Word | 97/100 DOCX · Output attached | Not tested in topic | Compare in task topic → |
| PDF compression | 97/100 PDF · Output attached | 75/100 PDF · Output attached | Active task |
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Browse this task →| Criterion | 123apps PDF compression 97/100 Seven-aspect task score 123apps (pdf.io/compress) delivers highly efficient, anonymous PDF compression. In real testing, a 1.66 MB mixed text/image PDF was compressed in 1.90s down to 104.1 KB (93.72% reduction), with deterministic PDF stream checks confirming 100% vector text and two-page structural retention without watermarks; free usage supports up to 10GB per file with non-intrusive ads and zero forced registrations. Tested export PDF · Output attached Historical test · 2026-10-30 | PDF Resizer PDF compression 75/100 Seven-aspect task score PDF Resizer provides completely free, login-free online PDF compression and optimization with 0.41s server processing, 100% vector text retention, and 1-hour automatic file deletion, though its default prepress preset achieves negligible size reduction on mixed-content PDFs. Tested export PDF · Output attached Historical test · 2026-10-31 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 123apps site-wide free usage and single Premium subscription system · 2026-10-30 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-30 ↗ Free Free Free 51 tools included, unlimited files per day, 10 GB max file size Fast standard processing speed, audio/video tools, PDF utilities；Includes display ads, standard queue priority Premium (Monthly)2026-10-30 ↗ USD 6/month — Monthly 51 tools included, unlimited files/day, 10 GB max file size, faster queue No ads, faster dedicated server pipeline, concurrent batch tasks Premium (Annual)2026-10-30 ↗ — USD 48/year Annual Billed annually at $48 ($4/mo equiv, 20% savings), unlimited files/day, 10 GB Full year ad-free experience, dedicated faster queue, priority support 3 plan / billing-period records, all listed; — means that period is not recorded. All 51 utilities are free to use with up to 10 GB file limits; Premium subscription costs $6/mo or $48/yr ($4/mo equiv, saves 20%) with no ads and faster processing queues. Cancellation, sources & verification recordCancellation and refund terms unverified 123apps Official Pricing Page ↗ · 2026-10-30 Capture 1 ↗ | PDFResizer entire web utility suite · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web Free2026-10-31 ↗ Free Free Free Unlimited usage without login; supports standard merging, splitting, compressing, and resizing Includes PDF resizing, merging, splitting, cropping, rotation, optimization, and N-up layout；Queue-based server processing; files automatically purged after 1 hour 1 plan / billing-period records, all listed; — means that period is not recorded. Official site explicitly declares all tools are free to use without limits or paid subscriptions, supported by advertising. Cancellation, sources & verification recordCompletely free without subscription; no cancellation or refunds needed. Official homepage and tools overview ↗ · 2026-10-31 Capture 1 ↗ |
| Free & trial allowance on the test date | Free support for files up to 10GB, no daily task locks | Completely free with no limits; standard file size support |
| Cancellation & refunds | Not verified | Completely free without subscription; no cancellation or refunds needed. |
| Disclosure of costs & limits | Immediately displays clear size comparison and download button upon completion with zero hidden paywalls | Homepage and tool pages clearly state 100% free usage and 1-hour auto deletion |
| Task quality | ||
| Measured fixture results | File reduction: 93.72% · Output size: 104.1 KB · Selectable text retained: 100% · Page 2 preserved: Yes | File reduction: -0.18% · Output size: 1662 KB · Selectable text retained: 100% · Page 2 preserved: Yes |
| Fixture findings | Outstanding benchmark sample performance: the 1,659.0 KB two-page document was compressed to 104.1 KB with a 93.72% reduction ratio (15.93x compression), preserving 100% of the 27 vector text operators and 12/12 table cells with fully selectable text. | In the 2-page mixed-content anchor benchmark, the default preset preserved 100% of selectable vector text operators (4/4 headings, 12/12 table cells), but file size was not reduced (1,659 KB to 1,662 KB, -0.18%). |
| Original historical observation | 123apps (pdf.io/compress) compressed the 1.66 MB test PDF to 104.1 KB in just 1.90s (93.72% reduction), with PDF stream inspection confirming all 27 vector text operators remain intact with sharp text edges. | PDF Resizer accepted the sample without login, processed it in 0.41s on the server, preserved 100% vector text, and exported a 1.62 MB watermark-free PDF (01_landing.png, 02_result.png, 03_download.png). |
| Suitable uses · historical assessment | Office and student users needing fast, free, and substantial compression of heavy PDF files while retaining 100% sharp vector text | Users needing fast, account-free online document processing with guaranteed 100% text selectability |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | PDF · Output attached · No watermark in test | PDF · Output attached · No watermark in test |
| Historical specification note · not an official maximum | Full 2-page native vector PDF (104.1 KB · -93.72% · Zero watermark) | Full 2-page native vector PDF (1,662 KB, no watermarks) |
| Watermark observation | No watermark | No watermark |
| Batch & API | Fast single-file processing supporting up to 10GB files | Supports multi-file batch upload/merge; no public REST API |
| Recorded free-tier dimensions | Not verified | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 1.9s · End-to-end reference: 1.9s | Network-observed server wait: 0.41s · End-to-end reference: 0.41s |
| Date & fixture | 2026-10-30 · anchor_pdfcompress_v1 · US-West (California, AS2914) | 2026-10-31 · anchor_pdfcompress_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | Anonymous usage without login, Email/password, Google OAuth | Direct upload and download with zero login required |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Anonymous upload and download without email or login requirements, zero paywall modals; top banner ads do not interfere with download controls. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | 123apps LLC | SIA Open Idea |
| Recorded origin | Not verified | Not verified |
| Domain history record | Not verified | Not verified |
| Background & reputation assessment | Not verified | Not verified |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google Tag Manager · Google AdSense | Google Ads · Setupad · Amazon Ads |
| Engineering & privacy assessment | Stateless server processing where temporary files are automatically purged after a few hours; TLS encrypted transfer. | Not verified |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Claims deletion within 1 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | ||
| Interaction restraint | 28 / 30 Anonymous upload and download without email or login requirements, zero paywall modals; top banner ads do not interfere with download controls. | |
| Background & reputation | ||
| Engineering & privacy | 14 / 15 Stateless server processing where temporary files are automatically purged after a few hours; TLS encrypted transfer. | |
| Task quality | 65 / 65 Deterministic PDF stream verification: file size reduced from 1,659.0 KB to 104.1 KB (93.72% reduction, 15.93x compression ratio), preserving all 27 native vector text operators (BT/TJ), 4/4 headings, 12/12 table cells, and page 2 verification token with 100.0% selectable text (65.0/65). | 34 / 65 Size Reduction: --0.18% (1659 KB → 1662 KB, 1× ratio) · Selectable Vector Text Retained: 100% · Page 2 Preserved: Yes |
| Deliverable specifications | 20 / 20 Direct anonymous export of full 2-page watermark-free standard PDF (104.1 KB) with 93.72% size reduction and no daily task locks (20.0/20). | 18 / 20 Clean unwatermarked export (8/8); Export spec: Full 2-page native vector PDF (1,662 KB, no watermarks) |
| Processing speed | 14 / 15 Cloud processing task (s89.pdf.io/pdf/process) completed in 1.90s verified network server wait (14.0/15). | 15 / 15 Network-observed server wait: 0.41s (API mode: cloud_ghostscript_linux; network upload 0s / end-to-end 0.41s shown for reference only, never penalized) |
