PDF Tools

Editing a PDF

This tool lets you change a PDF: add text and shapes, highlight passages, or cover areas up.

PDF is a format for output rather than for word processing, so extensive changes to the flow of text are only possible to a limited degree.

How to use it

Upload the file, pick the tool you need and make the changes directly on the page, then save the result as a new file.

Review the document fully afterwards: a change on one page can affect how neighbouring elements are laid out.

What works well and what does not

Additions such as notes, signatures, highlights and covers can be inserted reliably.

Rewriting existing paragraphs with reflowing text is laborious; where possible, change the source document and produce the PDF again.

Frequently asked questions

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Can I replace existing text?

To a limited extent. For larger text changes, editing the source document is the more dependable route.

Does a black box remove the text underneath?

Not necessarily — the text can remain in the file and still be extractable. Do not rely on it for confidential details.

Converting MHTML to PDF

This tool turns a MHTML file into a new file in PDF format. That is useful when another program, website or device specifically asks for PDF while your source file is only available as MHTML.

Before you start, check that the MHTML file is complete and opens correctly. A damaged or partially downloaded file usually produces an incomplete or unusable PDF result.

How the conversion works

Upload the MHTML file, start the conversion and wait for it to finish. You can then download the new PDF file and inspect its contents before replacing the original.

How long it takes depends on the size of the file and how busy your browser is at the time; larger files take proportionally longer.

When PDF is the right choice

PDF makes sense when you need compatibility with software that does not read MHTML, or when a form, platform or workflow explicitly requires that format.

Keep the original MHTML file until you have confirmed that the PDF version opens as expected in the program you need it for.

Frequently asked questions

What happens to my original MHTML file?

It is left untouched. The conversion creates a separate new file in PDF format, which you download while keeping the MHTML original.

Can I convert several files from MHTML to PDF in a row?

Yes. Repeat the process one file at a time; each conversion produces its own PDF file to download separately.

Does the PDF result keep the same quality as the MHTML file?

That depends on how the two formats work. Details such as compression or metadata can change when moving from MHTML to PDF, so always check the downloaded file before replacing the original.

Viewing and editing PDF metadata

Metadata is the information a PDF carries about itself: title, author, subject, keywords and the producing application.

It does not appear in the text but is read by file managers, search functions and viewers.

How to use it

Upload the file to see the existing entries, adjust the fields and save the document again.

The title matters most: many programs show it in the window bar instead of the file name.

Why this is worth checking

Before passing a document on, it pays to look at the metadata: it often still names the person or template the document grew out of.

For documents published on a website, meaningful entries also help them be found.

Frequently asked questions

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Does the visible content change?

No. Only the information about the file is edited; pages and text stay as they are.

Can I clear all the fields?

Yes. Empty fields are allowed if you would rather not disclose anything about the document's origin.

Splitting a PDF

This tool splits a PDF: you pick individual pages or page ranges and get them as separate files.

Useful when only one chapter or a single form is needed out of a long document.

How to use it

Upload the file and specify the pages or ranges you want, then download the resulting documents.

Mind the page numbering: a printed page number often differs from the actual position when the document starts with a cover sheet.

When this makes sense

To pass on only the relevant part of a document rather than sending the whole file.

It also helps with large files: an extract is far easier to send than a document of several hundred pages.

Frequently asked questions

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Is page quality preserved?

Yes. The selected pages are carried over unchanged rather than re-rendered.

Can I extract several ranges at once?

Yes, if you specify them as separate ranges. Each range yields its own file.

Merging PDF files

This tool combines several PDF files into a single document, in an order you choose.

Useful when material from different sources has to be submitted or archived as one document.

How to use it

Upload the files, arrange them in the order you want, and start the merge.

Check the page count and the order in the result — especially with files that consist of several scans.

What to watch for

Differing page sizes are preserved: a mix of portrait and landscape produces a document with changing page dimensions.

If one of the files is password protected, remove the protection first — protected files cannot be merged.

Frequently asked questions

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Is there a limit on how many files I can merge?

Processing happens in the browser and is bound by memory. With very many or very large files, merge in stages.

Are internal links and bookmarks kept?

Internal links can be lost when merging. Check the result if the document relies on them.

Removing a PDF password

This tool removes the password protection from a PDF so it opens without a prompt afterwards.

You need to know the password. A document whose password is unknown cannot be opened with this tool.

How to use it

Upload the protected file, enter the password and confirm. You then get a version without protection.

Verify the result by opening it once — no password prompt should appear.

When this makes sense

For your own documents that you open regularly, or before processing a document further: many tools cannot read protected files.

Bear in mind that the unlocked version can be opened by anyone who receives it, so store it accordingly.

Frequently asked questions

Does this work without knowing the password?

No. The tool does not bypass protection; it only removes it when the correct password is supplied.

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Are content and layout preserved?

Yes. Only the protection is removed; pages, text and images are unchanged.

Protecting a PDF with a password

This tool puts a password on a PDF file. Without that password the document cannot be opened.

Keep the password separate from the document. If it is lost, the content is no longer accessible.

How to use it

Upload the PDF, enter the password and confirm. Download the protected version afterwards and open it once as a check.

Use a password of reasonable length. A short, common word can be guessed by trial and error very quickly.

Limits of the protection

A password prevents opening, not sharing. Anyone who knows it can copy the contents and pass them on.

Do not send the password and the document by the same channel, or the protection is effectively cancelled out.

Frequently asked questions

What happens if I forget the password?

The document can no longer be opened. There is no way to remove the protection without it.

Is my original PDF modified?

No. A new file is produced and the original stays as it is until you choose to replace it yourself.

Can I remove the protection later?

Yes, using the tool that unlocks PDFs — for which you need to know the password.