ClariPDF

View & Edit PDF

PDF Annotator Online

Use a PDF annotator when you need to review a document without changing the underlying source file.

InputPDFOutputPDFLimit25 MB per file

Dedicated workflow page with input and output limits shown.

Processing engine is being connected before file handling goes live.

Updated 2026-07-10. This workflow is live while the processing engine is being connected.

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PDF - up to 25 MB

PDF
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Status: Waiting for files

  1. Uploading
  2. Processing
  3. Finalizing
  4. Ready

Temporary processing. Download links are not public pages.

Good for

Document review
Study highlights
Team feedback
Contract comments

How to use this tool

  1. 1

    Upload the PDF file you want to process.

  2. 2

    Review the settings, page range, or output format before starting.

  3. 3

    Download the PDF result and check it before sharing.

When this tool fits

Choose this workflow for document review, study highlights, team feedback, or contract comments when your file starts as PDF and you need PDF output.

Practical notes

The page focuses on review workflows, which is the core need behind annotation searches.

Before you start

Annotations should remain visible in common PDF readers, but advanced comment metadata may vary by viewer.

File handling

  • The page states the intended file types and output before upload.
  • Quality limits are explained so users know what to review.
  • The tool avoids making guaranteed layout, privacy, or accuracy claims.

Security & privacy

Files should be handled through temporary processing routes, with clear format validation, no public result pages, and no claims that exceed the actual security controls.

Related tools

Edit PDFAdd text, shapes, highlights, and basic annotations to a PDF without rebuilding the whole file.PDF ReaderOpen and read PDF files in the browser with page navigation and review-friendly context.Share PDFPrepare a PDF for sharing with the right file size, access expectations, and recipient workflow.

Helpful guides

PDF vs DOCX: which format should you use?A simple decision guide for choosing PDF or Word in common document workflows.How to reduce PDF file size without losing readabilityCompression choices that balance smaller files with readable text and images.Browse all guides

Explore connected PDF workflows

Use these links to move between the closest task pages without guessing which converter, editor, or guide fits next.

Next tools in this workflow

Move to the most likely next step after this task.

Edit PDFPDF ReaderShare PDF

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Helpful guides for this task

Use these guides to choose settings and avoid common quality issues.

PDF vs DOCX: which format should you use?How to reduce PDF file size without losing readability

PDF Annotator questions people also search

These practical questions cover the long-tail tasks, quality checks, and privacy details behind this workflow.

How to pdf annotator for document review?

Use this page when your file matches PDF input and you need PDF output with clear quality notes before download.

What is the best next step after pdf annotator?

Many users continue with Edit PDF and PDF Reader, depending on whether they need to reduce size, edit pages, or prepare the file for sharing.

How do I avoid quality problems with pdf annotator?

Annotations should remain visible in common PDF readers, but advanced comment metadata may vary by viewer.

What privacy details matter before using pdf annotator?

Files should be handled through temporary processing routes, with clear format validation, no public result pages, and no claims that exceed the actual security controls.

Review security notes

PDF Annotator FAQ

Can I highlight text in a scanned PDF?

Image-only pages may need OCR or freehand markup instead of text-aware highlighting.

Will comments show in every PDF reader?

Basic visible annotations should, but advanced comment panels can vary.

Is annotation the same as editing?

No. Annotation adds review marks, while editing changes or overlays content.

How do I use PDF Annotator online?

Upload PDF, review the settings shown on the page, start the workflow, then download the PDF result when processing is ready.

What file types does PDF Annotator support?

PDF Annotator is scoped to PDF input and PDF output, with a 25 MB per-file limit shown before upload.

Will PDF Annotator change my original file?

No. The original upload should remain unchanged; the service creates a separate output copy for you to review before sharing.

What should I check after using PDF Annotator?

Annotations should remain visible in common PDF readers, but advanced comment metadata may vary by viewer.

Is PDF Annotator suitable for document review?

Yes, when the file type and output match this workflow. Review the result carefully, especially when the document contains scans, forms, custom fonts, or sensitive information.

Can I use PDF Annotator without installing software?

The workflow is designed for browser-based document work. Some advanced conversions still require a connected server engine before file processing is enabled.

Why is PDF Annotator not processing files yet?

The page explains the workflow, input formats, output formats, and quality limits while the conversion engine is being connected.