PDF Editor
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Edit a PDF without changing the original file

Add text, images, signatures, annotations and forms to a PDF. Existing text is edited only when the document passes the capability check.

The editor adds text, images, visual signatures, annotations and forms, and changes supported existing text only after capability checks.
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When this tool helps

The editor adds text, images, visual signatures, annotations and forms, and changes supported existing text only after capability checks. The situations below show what this workflow is designed for so you can choose the tool before uploading a document.

  • Add a note, image or visual signature to a finished page.
  • Correct a supported text fragment and review font or overflow warnings.
How it works

Edit PDF online

The “Edit PDF online” workflow consists of 3 consecutive stages. Review the settings and expected output at each stage because processing creates a new copy instead of overwriting the source.

  1. 01Upload PDF

    Select one PDF up to 50 MB.

  2. 02Make changes

    Add or select content and review any capability warnings.

  3. 03Export

    Run preflight and download a separate PDF result.

What you can do

The capabilities below describe what is included in the workflow and the resulting file. Use them to confirm whether this tool completes the task or whether another processing stage will be needed.

  • New and supported existing text
  • PNG/JPEG images
  • Visual signatures and annotations
  • PDF forms and export preflight

Limits and important details

Limits keep the result predictable by describing supported files, processing boundaries and PDF properties that may require manual review. Read them before starting, especially for complex documents.

  • Unsupported fonts or text structures use an explicit fallback
  • Complex scan backgrounds require manual review
  • PDFs are not stored in a permanent document library
  • An inactive guest session expires after 15 minutes
  • The hard session limit is 2 hours

Before you start

  • Keep the source file until the result has been reviewed
  • Check whether the PDF is password-protected or digitally signed
  • Identify the pages and objects that are expected to change
  • Use a non-sensitive test copy for an unfamiliar workflow

Result checklist

  • Open the downloaded copy in a second PDF viewer
  • Review every changed page at normal and enlarged zoom
  • Check text search, links, forms and visual quality where relevant
  • Confirm that confidential data and metadata meet the intended use
Example

Add a note to a page

The “Add a note to a page” scenario follows a source file through to a separate result. It shows which action is performed and what should be checked after download.

Input
A synthetic one-page, unencrypted PDF.
Action
Add a heading and image over the page, then review the preview.
Result
A separate PDF with the new objects; the source stays unchanged.
Privacy

Temporary processing in Germany, EU

The file is processed only inside a temporary guest session. Access closes when the session ends, and source and result files follow the service deletion lifecycle.

  • No permanent document library
  • No external AI, OCR or PDF providers
  • 15-minute inactivity timeout
  • 2-hour hard session limit
FAQ

Questions and answers

These answers apply specifically to “Edit PDF online” and extend the main instructions. They cover settings, expected output and the cases that most often need clarification before processing.

Can I edit text that is already in the PDF?

Yes, when the PDF contains supported digital text and fonts. Unsupported blocks fall back to adding a new text layer instead of being changed silently.

Which images can I add?

PNG and JPEG images are supported. The original PDF remains unchanged.

Can I sign the PDF?

Yes. You can add typed, drawn or uploaded visual signatures. This is not a qualified electronic signature.

How do the text editing modes differ?

Overlay adds a new layer, guarded direct edit changes only supported text, and existing/OCR patches require preflight checks.

Help center

Common errors and next steps

When processing cannot continue, the service shows a reason code and a safe next step. Resolve the stated issue and upload again or choose another mode; the source document remains unchanged.

DIRECT_TEXT_EDIT_UNSUPPORTED

The selected text or font cannot be changed safely in place.

Use an overlay or keep the original text unchanged.
existing_text_overflow

The replacement does not fit inside the original text bounds.

Shorten the replacement, resize the box, or explicitly confirm cropping.
Help center →
Help center

Useful guides

Practical guides provide context that does not fit into a short procedure: how to choose a mode, understand processing consequences and handle the document safely.

Four PDF text editing modesHow to preserve fonts and layout when editing a PDFHow to make a PDF accessible

Editorial and technical review: · next review:

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