Vendor sources and our tests are labelled separately. Independent tests that have not been run are not implied.

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Fits
A browser-based collection of PDF utilities.
Main limit
Online processing uploads files to PDF24 servers.
Evidence
Scoped original outcomes plus documented claims

This record combines scoped original tests with vendor documentation. Review the exact tested environment and limitations below. Test non-sensitive copies of your own files before switching. Platform support does not establish support for every operating system version.

Edition
Online Tools
Platforms
Browser
Installation
web
Source-identified version
Not recorded
Last original test
25 Sept 2026
Version tested
See exact versions in the task results below

Evidence recheck in progress

Previous evidence is retained. A monitoring alert is not proof that the previous fact is wrong. Only fields marked “Recheck required” are withheld from tested matches or affected cost estimates.

  • Read scanned text (OCR), Merge & organize pages, Offline requirements · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 19 Sept 2026 · Changed source
  • Edition-wide source scope, Price and billing, Offline requirements · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 19 Sept 2026 · Changed source
  • Edit existing text, Annotate & sign · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 19 Sept 2026 · Changed source
  • Create fillable forms · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 19 Sept 2026 · Changed source
  • Read scanned text (OCR), Merge & organize pages, Offline requirements · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 27 Sept 2026 · Changed source
  • Edition-wide source scope, Price and billing, Offline requirements · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 27 Sept 2026 · Changed source
  • Edit existing text, Annotate & sign · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 27 Sept 2026 · Changed source
  • Create fillable forms · Source review pending; no decision hold
    Source content changed. Compare the before/after excerpt and verify affected fields before restoring eligibility.
    Opened: 27 Sept 2026 · Changed source

Each capability row retains its last recorded source/test date. Other fields remain governed by their own evidence and freshness. No completion date is promised.

Capability evidence

Official sources establish advertised availability and limits. A recorded task test separately establishes what worked in a specific environment.

Edit existing text

Not supported

Adds new text and drawings. The documented workaround for changing existing text is conversion to Word, editing there, then converting back.

Official source ↗Source checked: 12 Sept 2026

Read scanned text (OCR)

Available · official source

The online tools include OCR; documents are processed on servers.

Official source ↗Source checked: 12 Sept 2026

Create fillable forms

Available · official source

Creates fillable form fields including text boxes, checkboxes and dropdowns.

Official source ↗Source checked: 12 Sept 2026

Fill existing forms

Source needed
Source checked: Date not recorded · recheck due

Annotate & sign

Available · official source

New text, drawing and image annotations are documented; signature tools are also listed in the PDF24 tool collection.

Official source ↗Source checked: 12 Sept 2026

Merge & organize pages

Available · official source

The PDF24 tool collection provides online merge and page tools.

Official source ↗Source checked: 12 Sept 2026

Permanently redact text

Passed in recorded scope

PASS for this one-page synthetic fixture and Browser workflow only. Neither W2D-VISIBLE-742913 nor W2D-HIDDEN-583201 was recoverable from extracted text or decoded streams. Visual inspection confirms the marked region is black. Output is one raster image (1240 × 1753); the page content only paints that image, with no text layer, annotations or embedded files. Tradeoff: all page text lost searchability. Original document metadata remains. Does not establish metadata sanitization, arbitrary PDF safety, Windows Creator behavior, other versions, offline use, or handling of attachments, layers, forms or signatures.

Original test evidence ↗Test performed: 12 Sept 2026Scoped task evidence recorded

No hands-on result is implied by an official-source check. Unresolved outcomes remain excluded from tested recommendations.

Scoped original task results

Permanently redact text · Pass

Browser · OS Remote Chrome session; OS build not independently established · app Online web app; vendor build number not exposed
Remote browser environment; hardware not exposed · 12 Sept 2026

Steps performed: Opened PDF24 Online Redact PDF, accepted the use terms with owner authorization and uploaded the original CC0 synthetic pdf-redaction-v1 fixture. Selected Add shape > Rectangle. Resized the opaque black rectangle to cover both the visible marker and the known white-on-white hidden marker area. Used Save PDF and downloaded the generated result. Rendered the output with MuPDF, extracted text with Poppler and MuPDF, and inspected decoded PDF streams, page resources, annotations and embedded files.

Observed result and limits: PASS for this one-page synthetic fixture and Browser workflow only. Neither W2D-VISIBLE-742913 nor W2D-HIDDEN-583201 was recoverable from extracted text or decoded streams. Visual inspection confirms the marked region is black. Output is one raster image (1240 × 1753); the page content only paints that image, with no text layer, annotations or embedded files. Tradeoff: all page text lost searchability. Original document metadata remains. Does not establish metadata sanitization, arbitrary PDF safety, Windows Creator behavior, other versions, offline use, or handling of attachments, layers, forms or signatures.

Fixture: Redaction extraction challenge

Fixture checksum and test ID

SHA-256: d253a9453b0ea419ac20677d524fe6322e37aa494cdf417b52147d219b411df9
Test: pdf24-online-redaction-20260912-v1

Original supporting evidence

Saved PDF24 Online redaction output for the synthetic Browser fixture. Page text was rasterized; original document metadata remained.
Saved PDF24 Online redaction output for the synthetic Browser fixture. Page text was rasterized; original document metadata remained.
ORIGINAL BROWSER TASK · 25 SEPTEMBER 2026

Did one Save keep an added text marker?

Yes, in our one-page synthetic test. The downloaded PDF visibly and textually contained W2D-SAVED-ONCE-2026-09-25 after one Save action. But the original table value stayed at 3: this was an added text overlay, not editing existing PDF text.

Actual PDF24 Online saved output open in Chrome PDF viewer, showing the unique added marker and unchanged quantity 3
Actual downloaded task output, not generated UI. One Browser run; vendor build, OS and hardware were not exposed.

See the exact steps, output, checksums and limitations

Offline use and network dependencies

Setup, activation, local work and cloud services can have different requirements.

Install / first load needs internet

Yes · documented

The first browser visit and online processing require internet; there is no desktop installation in this edition.

Official source ↗Source checked: 12 Sept 2026

Account / license activation needs internet

No · documented

The free online tools do not require a paid license. Loading the website still needs internet.

Official source ↗Source checked: 12 Sept 2026

Core task works locally

No · documented

Online tools process documents on servers. Use Creator for the documented local Windows workflow.

Official source ↗Source checked: 12 Sept 2026

Cloud features or dependencies

Yes · documented

Server processing is a required dependency of the online edition.

Official source ↗Source checked: 12 Sept 2026

A complete disconnected installation, activation and task run has not been independently tested.

Revision history

12 Sept 2026 · Publish actual PDF24 Online synthetic redaction test: visible and hidden markers removed from rasterized output; full-page searchability lost and metadata retained. Browser scope only.Published revision
12 Sept 2026 · Official-source review: exact-edition capabilities, limits, prices and network dependencies. No independent application test claimed.Published revision
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