FIVE CAUSES, ONE TEST EACH
Why can't I edit this PDF?
Nothing you try works. The text will not select, or it selects and will not change, or the menu item you need is grey. Before you install anything, it is worth knowing which of five things your file actually is, because each one has a different fix.
- Five reasons a PDF refuses to be edited, each with a test you can run in ten seconds.
- Drop the file in below and the editor names two of them for you: a password error, or a panel saying the page is a scan.
- Free to edit. Downloading needs a free account and starts at 99p for your first week.
Drag & drop your PDF here
Private: processed in your browser
Will this work on your file?
| Your file | Works here? | What happens |
|---|---|---|
| A PDF where dragging across a paragraph highlights the words | Yes | There is real text under the page, so what stopped you was the app you opened it in. Click the line here and retype it. |
| A scan or a phone photograph, where nothing highlights anywhere | After one step | Every letter is pixels. A panel appears on any page with ink and no text: press Run OCR and the recognised lines become clickable. Edit Scanned PDF |
| A file that opens normally but will not let you copy or print | Yes | A permissions flag is an instruction to readers, not a lock on the words. The page opens here and the lines are editable. |
| A file that asks for a password before the first page appears | After one step | The contents are encrypted, so the editor stops at a password error and never reaches the page. Only a copy decrypted with the password you know can be opened. Unlock PDF |
| A PDF whose typeface was never stored inside it | After one step | The text edits, but new characters arrive in the nearest substitute and the join shows. Cover the whole line and set it again so it matches itself. Whiteout PDF |
| Words that sit inside a logo, a chart or a pasted screenshot | Not here | Those letters were drawn as part of a picture, so no editor puts a cursor in them. The picture itself has to be swapped. Replace Image in PDF |
Who ends up on this page
Someone sent a form to complete by Friday
Three PDF apps have opened it and not one will put a cursor on the page.
A parent copying details off a letter from a school or a surgery
Highlight, copy, paste, and nothing at all arrives in the other window.
An office manager handed a 40-page policy with no source file
The version number on page one is last year and the author left in March.
A contractor who signed a scope of work and needs one figure changed
The signature panel is green and every menu item that would change the figure is grey.
How to do it
- 1
Drop the PDF in and read what comes back
The file opens in the page and is not sent anywhere. Two of the five announce themselves here: a password error naming the Unlock tool, or a panel on any page that has ink but no text, offering Run OCR. A pale green bar instead means the fields are real and working, so none of the five is yours.
- 2
Pick Select and click the line you want to change
Select is the tool you start in. If the line lifts into an editable box, your file was always fine and the app you had it in was the limit. Retype it, then compare the new characters with their neighbours.
- 3
If nothing lifts, press Run OCR on that page
A panel appears on any page carrying ink but no text. Choose the language and press the button: the engine downloads once, then reads a page at a time. Proofread what comes back.
- 4
Anything still stubborn: Rectangle, then Add Text
Drag a Rectangle over the old wording and set its Fill in the side panel to match the page, then put the new wording in with Add Text. Printed squares take a tick from the Check tool, on scans and flattened pages alike.
What you can change
- Read the 6 pages of a posted letter into text, then correct the postcode on page 4
- Retype 2 lines of a statement whose window title says SECURED but which opens without a password
- Type your 9 answers onto a form whose fields stopped responding the day somebody signed it
- Cover and set a whole 40-character line again when the file's own typeface turns out to be missing
- Change one date on a certificate your browser will only ever show you, never open for editing
- Tick the 3 printed boxes on a scanned page that no reader will let you click into
- Swap the screenshot on page 2 whose wrong figure is pixels rather than text
Why the usual routes break this file
Search for something that removes the password
The results either want the document uploaded to somebody else, or they ask for the password you were missing in the first place. An encrypted file holds no readable page until the key arrives.
Convert it to Word to find out what is wrong with it
The conversion succeeds on all five causes and tells you nothing. A scan lands as one full page picture; a flattened form lands as a page of empty printed rules. You now have two files and the same question.
Print it, write on it, scan it back in
Whatever it was before, it is now cause one for certain: a crooked picture with no text in it, several times the size. Anything selectable that survived the original export has gone.
Screenshot the page and edit the image instead
You get the change at the resolution of your monitor. Nobody can search or copy that page afterwards, and printing it shows the difference against every page you left alone.
What this will not do
- A PDF that will not open without a password stays shut here. We do not recover, guess or attack passwords.
- There is no switch here that clears a copy or print restriction on its own. Unlock PDF is aimed at the other lock, a password you can already type.
- OCR reads a page at a time and only what it can see. Faint carbon copies, handwriting and odd column layouts come back with mistakes, so every recognised page needs checking.
- Editing a digitally signed PDF breaks the signature, here and in every other editor: the validation panel stops saying the file is unaltered.
- Letters drawn inside a logo, a chart or a screenshot are not text in any editor, so none of the five fixes reaches them.
- Diagnosing and editing are free and the file never leaves your browser. Downloading the fixed PDF needs a free account, 99p for your first week and then a plan from £11.99 a year.
Questions people ask
Why do PDFs behave like this at all?
A PDF is a set of drawing instructions, not a document with paragraphs in it. It records which glyph goes at which coordinate, in which font, and stops. Nothing in the file says this is the second paragraph. Any editor has to work backwards: gather glyphs into lines, identify the font that drew them, redraw the line. That is why one file gives way at once and the next resists. It depends on how much the export kept.
Copy and Edit are greyed out but the file opens. Can you take that off?
Not with us. Those grey menu items come from a permissions flag the author set, and honouring it is a choice each reader makes rather than a lock on the page. There is no switch here that flips that flag on its own, and Unlock PDF is aimed at the other lock, a password you can already type. You can still open the file here and change the text. For a properly unrestricted copy, ask whoever issued it.
I do not have the password. Can you open it anyway?
No. If the PDF demands a password before it shows a page, the contents are encrypted and the editor stops with an error. We do not recover passwords, guess them or run anything against them, and nothing on this site will. Unlock PDF is for the opposite case: you know the password, you are tired of typing it, and you want a copy that opens freely. Without it, the only route is the person who set it.
Nothing selects, not even the page number. Is the file damaged?
No, it is a picture. Somebody scanned or photographed the page, so every letter on it is pixels. Open it here and a panel appears on any page with ink but no text: pick the language, press Run OCR, and the recognised lines become clickable text you can retype. The engine downloads once, then works a page at a time. Crooked or faint pages come back with errors, so read it through afterwards.
The signature panel says the document is valid. Should I edit it?
Only if you accept losing it. Signing flattens the form fields into the page and seals the file against change, so the first edit you export breaks that seal, here and in every other editor. If the document is yours, get a fresh unsigned copy, change that and sign it again. If it belongs to somebody else, tell them what is wrong and let them reissue it.
My browser and my email preview will not let me type. Are they broken?
No, and this is the commonest cause on the page. A browser PDF viewer, and the preview panel inside a mail app, exist to show a file quickly and safely. Most will fill in fields, some will let you add a note, and that is the whole list. Nothing in the interface says so, which is why people blame the file. If the text highlights when you drag across it, the file is fine and the app is the limit.
Most stuck PDFs are stuck for one of five reasons, and four of them have a fix on this page. Open yours above and see which one it is: the editor will tell you in about two seconds, and looking costs nothing.
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