Can I really edit the text that is already in my PDF?

Often, yes — and it is worth knowing when. If the text is real text, you can select it and retype it. The replacement keeps the original's size, colour and weight, and sits in the same place. What it cannot do is reflow: the words around it do not move aside, so a much longer replacement is set smaller to fit the space the old one occupied. If the page is a scan, there is no text to edit — only a picture of it — and the editor tells you so rather than pretending.

Will editing text leave an ugly white box behind it?

No, and this is the part most tools get wrong. The original words are removed from the page's content rather than painted over, so whatever was behind them — a shaded table row, a coloured header, a scanned letterhead, a photograph — is still the original object underneath. A white rectangle is only ever the result if the page really was white there.

Is my PDF turned into images?

Never. That is the usual shortcut and it destroys the document: text stops being selectable and searchable, graphics go soft when you zoom, and the file balloons. Your edits are applied to the real PDF objects, so everything you did not touch comes back exactly as it went in.

What can I add to a page?

Text, in a choice of standard fonts, sizes, colours and alignments, with bold and italic. Your signature. The date, the time or both, in the format you choose. Ticks and crosses for checkboxes. Images in PNG, JPG or WebP, which keep their proportions when resized. Freehand drawing, lines, boxes and circles. Highlight, underline and strikethrough, added as real PDF annotations, so whoever receives the file can see and remove them like any other comment.

Choose Sign, then draw your signature with a mouse, finger or pen, type your name in a script style, or upload a picture of your signature. Click where it should go and resize it by its corners. A drawn signature goes into the PDF as vector lines, so it stays sharp at any size, and if you drew it you can tick a box to remember it in this browser for the next document. It is stored on your device only, never sent to us.

Can I add today's date automatically?

Yes. The Date tool stamps today's date where you click, and Time and Date & time do the same for the clock. Pick any other day or time in the panel, and choose from formats such as 20 September 2026, September 20, 2026, 2026-09-20 or 20/09/2026. The result is real text in the PDF, in the font, size and colour you set.

Can I rotate or delete pages?

Yes. Turn any page a quarter at a time, and delete pages you do not want — anything you added to a deleted page goes with it. A document has to keep at least one page. If you only want to take pages out, Split PDF is the more direct tool.

Yes, and it is instant. The editor keeps a record of what you have done rather than rebuilding the PDF as you work, so undo and redo are immediate and nothing is uploaded until you press Save. That is also why you can change your mind fifty times and the saved file is no larger for it.

How big a PDF can I edit?

Up to 50 MB. Very long documents are slower to render in the browser than to process, so if you only need one section, splitting it out first and editing that is usually quicker. Password-protected PDFs have to be unlocked before they can be opened.

Is this converter free?

Yes. Every conversion on ConvertNicely is free to use, with no account, no watermark on the result and no limit on how many files you convert.

What happens to my files?

Your uploaded file is deleted from our servers the moment the conversion finishes, whether it succeeded or failed. The converted result is deleted automatically one hour later, and you can delete it yourself at any time with the Delete button.

Is there a file size limit?

Files up to 50 MB are accepted for this conversion. Larger limits apply to paid plans in future, but the free limit is generous enough for the overwhelming majority of PDF conversions.

Do I need to install anything?

No. ConvertNicely runs entirely in your browser and on our servers, so there is nothing to download or install. It works the same on Windows, macOS, Linux, Android and iOS.

Does it work on a phone?

Yes. The whole site is built mobile-first, so you can upload from your camera roll or files app, convert, and download the result without leaving your browser.

Free

Edit & Sign PDF Files

A real editor, not a form. Your document is rendered in the browser and you work on it directly — retype a wrong name, add a note, sign it by hand, stamp today's date, tick the boxes on a form, highlight a clause, turn a page the right way up. Nothing is flattened into a picture: the text you did not touch stays selectable and searchable, the graphics stay sharp, and every page keeps its size.

Also known as: PDF editor · sign PDF · fill in a PDF form

Files up to 50 MBTypically under a minute

What do you want to do?

Or drop your PDF hereor choose a file from your device

Your PDF opens right here in your browser. Nothing is uploaded until you press Save PDF. Files up to 50 MB are accepted.

Your files are deleted automatically

Uploads are removed as soon as processing finishes, and converted files are deleted after 1 hour. Read our privacy policy.

How to edit & sign PDF files

Step 1
1. Open your PDF
Pick your PDF. It opens in this browser, and nothing is uploaded until you save.
Step 2
2. Make your changes
Choose a tool from the toolbar: replace or add text, add an image or your signature, draw, highlight, rotate or delete pages.
Step 3
3. Press Save PDF
Your document is uploaded once, and your edits are applied on our servers.
Step 4
4. Download your PDF file
Your upload is already deleted, and the result is deleted after one hour.

Worth knowing

Editing existing text has limits. Replacement text does not reflow, so the words around it stay where they are. The original typeface usually cannot be reused, because a PDF embeds only the letters it already contains; a standard font is substituted and the size, colour and weight are kept. Text in a scan is a picture of words and cannot be edited, though you can add text over it. Password-protected PDFs are refused; unlock them first.

Why edit & sign PDF files?

Signing a contract or a form and dating it, without printing it
Correcting a name, date or figure in a document you cannot regenerate
Filling in a form that was sent as a flat PDF with no fields — text, ticks and all
Marking up a contract with highlights and notes before sending it back

What changes

What edit & sign PDF files changes, and what it leaves alone
Property	Before	After
Text you edit	Original	Replaced in place
Text you leave alone	Selectable	Still selectable
Page size	As uploaded	Unchanged
Graphics	Vector	Still vector

Frequently asked questions

Page updated 3 October 2026

All PDF converters

Edit & Sign PDF Files

How to edit & sign PDF files

1. Open your PDF

2. Make your changes

3. Press Save PDF

4. Download your PDF file

Why edit & sign PDF files?

What changes

Frequently asked questions

Protect PDF

Watermark PDF

Split PDF

Merge PDF

Edit & Sign PDF Files

How to edit & sign PDF files

1. Open your PDF

2. Make your changes

3. Press Save PDF

4. Download your PDF file

Why edit & sign PDF files?

What changes

Frequently asked questions

Can I really edit the text that is already in my PDF?

Will editing text leave an ugly white box behind it?

Is my PDF turned into images?

What can I add to a page?

How do I sign a PDF?

Can I add today's date automatically?

Can I rotate or delete pages?

Does undo work?

How big a PDF can I edit?

Is this converter free?

What happens to my files?

Is there a file size limit?

Do I need to install anything?

Does it work on a phone?

Related conversions

Protect PDF

Watermark PDF

Split PDF

Merge PDF