UtilVox
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📝
PDF · Annotation

Professional PDF Editor

Add rich texts, vector highlights, custom shapes, and sticky notes directly in your browser.

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Drop your PDF here

Single PDF file · max 50 MB

How It Works

1

Upload

Drag or select your PDF document.

2

Edit

Add text, brush strokes, shapes, or sticky notes.

3

Download

Export and save the newly annotated PDF file.

Frequently Asked Questions

Is my file stored on your servers?
No. Files are processed entirely inside your browser using canvas contexts to apply annotations and then immediately discarded. We never upload or store your PDFs.
Will annotations appear in Adobe Reader?
Yes. Annotations are natively compiled and flattened into the PDF content structure using client-side libraries, so they are perfectly preserved in every standard PDF reader.
Can I edit standard text already in the PDF?
No, this is an annotator that lets you draw, add text layers, highlight, and place sticky notes over the PDF. True inline text editing requires OCR and text reflow.
Do my changes persist across pages?
Yes. Annotations are saved per-page dynamically as you navigate. All pages are compiled together when you click Save Edited PDF.
What is the maximum file size?
We support PDF files up to 50 MB for optimal browser memory performance.
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What PDF Editing Can and Can't Do

Edits this tool handles well

PDFs were designed to be final, so editing means layering changes onto a fixed page:

EditHow it worksTypical use
Add textNew text box placed on the pageFilling forms that aren't fillable
Insert imagePlaced and scaled anywhereAdding a logo, photo, or signature image
Shapes and highlightsRectangles, lines, emphasisMarking up a draft for review
Cover contentOpaque shape over existing textHiding an account number before sharing
AnnotateComments and calloutsFeedback on a design or contract

The honest limitation: reflow

A PDF doesn't know its text is made of paragraphs — just characters at coordinates. Deleting a sentence won't pull the next line up, and adding one won't push content down. For light touches — a date, a name, a checkbox — direct editing wins. For rewriting paragraphs, convert with PDF to Word, edit properly, and export back. Knowing which side of that line your edit falls on saves an hour of fighting.

One privacy note on covering text

A shape drawn over text hides it visually, but the text may still exist underneath and can sometimes be selected or extracted. For genuinely sensitive redaction (CNIC numbers, salaries in a shared contract), flatten the result — or print to image-based PDF — so the covered data is gone, not just hidden. For signatures specifically, the dedicated signing tool places them cleanly, and finished edits often end with compression before sending.