PDF Editor Help

Last updated: 2026-09-10

The quickest way to learn PDF Editor is to open a PDF and try the tools. This guide walks through each part of the workflow and explains what to do when a file won't open or save.

Open a PDF from your computerTop

PDFs from your computer are read directly in the browser. They aren't uploaded to a PDF Editor server, and you don't need to sign in.

How to open a PDF

  • Use the start page. Select Open PDF From Computer and pick a file.
  • Use the toolbar. Choose Open from computer... in the toolbar's Open menu, or press Ctrl/Cmd + O.
  • Drag and drop. Drag a PDF from your desktop or a folder window onto PDF Editor.
  • Paste a PDF. Copy a PDF file in another app, return to PDF Editor, and paste it.
  • Open a recent PDF. Recent files are listed on the start page and at the bottom of the Open menu; select one to reopen it.

What you can open

PDF Editor opens PDF files up to 100 MiB: text PDFs, scanned PDFs, PDFs with forms, and password-protected PDFs (it asks for the password). It always saves a PDF. To start from pictures instead, see Create a new PDF.

Open a PDF from Google DriveTop

Select Open From Google Drive on the start page, or choose Open from Google Drive... in the toolbar's Open menu. Sign in with the account that can access the PDF, then choose it in the Google file picker.

Good to know

  • Access is limited. PDF Editor can work with files you select or create with the app, not everything in your Drive.
  • Shared files are supported. You can open a PDF from a shared drive or a file shared with your account. If you only have view access, save your own copy instead of overwriting it.
  • Use the same Google account. If the picker shows the wrong files, close it and make sure you're signed in with the account that has access.

Create a new PDFTop

Select Create New PDF on the start page, choose New PDF in the toolbar's Open menu, or visit pdfeditor.co/new. A one-page Letter PDF named untitled.pdf opens right away. Nothing is written until you save, and closing an untouched new PDF with Esc asks nothing.

From pictures

Choose New PDF from images... in the Open menu and pick one or more JPEG or PNG files. The new PDF is named after the first picture and has one page per picture: at the picture's own size, or on a Letter or A4 sheet turned to fit the picture, whichever you choose in the dialog.

More pages

  • Insert > Blank page... in the Organize pages menu adds a page after the current one, in Letter, A4, or the current page's size, portrait or landscape.
  • Insert > Image as page... adds one page per picked JPEG or PNG.
  • Insert > From PDF... is how you combine PDFs: it merges another PDF's pages in after the current page, and a message tells you where they landed.

Work with pagesTop

The Pages button on the toolbar shows a sidebar of page thumbnails. Select a page there, or several with Shift or Ctrl/Cmd, and the toolbar's Rotate left, Rotate right, and Delete page buttons act on the selection; without a selection they act on the page you are viewing. Drag a thumbnail to move it, or use Alt + Up and Alt + Down. Right-click a thumbnail for a menu of every page command; right-click the empty space below the thumbnails for the whole-document commands, Select all pages, and inserts that land after the last page. A command the document cannot take right now (Move up on the first page, Delete on the only page) is greyed.

The Organize pages menu

The Organize pages button on the toolbar, the thumbnail's right-click menu, and Edit > Organize pages open the same menu. Hiding the Pages sidebar clears the selection, so the commands then act on the page you are viewing.

  • Duplicate, Move up, Move down; Insert and Whole document submenus. Copy or rearrange the selected pages; insert after them; reverse, fold or flatten the whole document.
  • Insert: Blank page..., Image as page..., From PDF... Add pages after the selected ones, as described under Create a new PDF. From PDF... is how you combine PDFs.
  • Crop page... Drag a rectangle over the page to keep just that part. The rest of the page is hidden, not deleted, and Undo brings it back.
  • Resize pages... Fit or stretch the selected pages onto Letter, A4, or a custom size. Pages are redrawn, so form fields on them become fixed content.
  • Remove other pages... Keep only the pages you name, for example 1-3, 7; the rest are removed from the PDF, and Undo brings them back. Save the result under a new name to make a smaller PDF while the original stays untouched.
  • Whole document: Reverse page order, Two pages per sheet, Flatten form fields. Two pages per sheet folds pairs of pages onto landscape sheets and redraws them; Flatten turns filled form fields into fixed page content so no reader can change them.
  • Whiteout area..., in the Tools menu, covers part of the current page with white. This is a visual cover, not a redaction: the covered text is still in the file, still found by Find, and still exported as text.

Undo, redo, and revert

Use the Undo and Redo toolbar buttons or the standard keyboard shortcuts. Page changes and annotations share one history. Revert all changes, in the Edit menu, returns to the PDF as it was opened; Undo brings the changes back if you change your mind, except filled-in form fields, which are cleared for good.

Zoom, find, full screen, and themes

The zoom buttons, the page number field, and Find (Ctrl/Cmd + F) sit on the toolbar; Find on a scanned PDF without a text layer says so instead of counting matches. The View menu adds Fit to page, Fit to width, Actual size, Two-page view, and the Show pages sidebar, Show menu bar, and Show toolbar switches. Choose Full screen at the right end of the toolbar, or press Ctrl/Cmd + Shift + F, for a focused layout. The theme button in the header cycles the System, Light, and Dark themes; the pages themselves are never recolored. On a phone the Pages sidebar opens as a sheet.

Fill forms, annotate, and signTop

Form fields in a PDF can be filled in directly on the page: type into text fields, tick checkboxes, pick radio buttons and choices. The values are saved into the PDF. Forms built with XFA show a read-only notice, and a form's own scripts never run in PDF Editor.

Annotation tools

  • Add text. Click a page to place a text note. Text notes use Latin characters; other characters are dropped with a notice.
  • Draw. Draw freehand with the pen.
  • Highlight. Select text on a page to highlight it.
  • Add image. Place a JPEG or PNG on the current page; drag its corners to resize it.
  • Style. Pick the color, text size, or pen width for the active tool or the selected note.
  • Add signature, on the toolbar and in the Tools menu: draw your signature, type it, or upload a picture of it, then place it on the page. You can keep a signature on this device for next time; it stays in this browser only.
  • Add stamp... in the Tools menu places an APPROVED, DRAFT, or CONFIDENTIAL stamp, a check mark, or an X on the page.
  • Add watermark... and Add page numbers... in the Tools menu draw text into the pages: a diagonal watermark, page numbers, Bates numbers, or a header and footer.

Add text, Draw, and Highlight stay on until you press the tool again or press Esc. Each note, drawing, highlight, picture, and signature is saved as a regular PDF annotation, so other readers show it and can move or delete it. Notes that were already in a PDF when you opened it are shown, but this version can't edit them, and comments and replies are not part of it. On a phone the Annotate menu on the toolbar holds these tools and their Style options.

Passwords and permissionsTop

A PDF that needs a password to open asks for it when it loads and again after a wrong password. The password is kept for the session only: it is never stored, and a recovery draft of the file asks for it again. Saving keeps the file protected with the same password and permissions.

Add or change protection

Choose Protect with password... in the Tools menu. Set a password to open, an owner password, or both, and untick the permissions you want to withhold (printing, copying, changing, filling forms, commenting). The file is written with AES-256 encryption when you save. Anyone with the owner password has full access; keep it somewhere safe, because there is no recovery.

Remove protection

Choose Remove password in the Tools menu, then save. The saved file opens without a password. The row also withdraws a protection you added in this session before saving it.

Document properties

Document properties... in the File menu shows the file's title, author, subject, keywords, and dates, lets you edit the text fields, and can remove every property from the saved file.

PrintTop

Choose Print... in the File menu or press Ctrl/Cmd + P. Pick all pages, the current page, or a page range such as 2-5, 8, then press Print to open the browser's print dialog. Pages print as they appear in the editor, including rotations, filled form fields, and annotations, as 150 dpi images.

Pages as pictures

File > Export > Pages as images... downloads one PNG or JPEG per page at the resolution you choose, named after the PDF. Export > Embedded JPEG images downloads the JPEG pictures embedded in the PDF as they are stored, and Export > Text as .txt downloads the page text as a text file.

Save and exportTop

A PDF opened from Google Drive with edit access autosaves as you edit. A PDF from your computer is written only after your first manual save, which grants file access or picks the destination; from then on it autosaves too. The status beside the filename shows what has been saved.

Save to the current file

  • A local PDF. Press the Save button or Ctrl/Cmd + S. In Chrome, Edge, Opera, and other supported Chromium browsers, approve the write-permission prompt the first time it appears.
  • A Google Drive PDF. Save writes back to that Drive file when you have edit access.
  • A protected PDF. Save keeps the password and permissions the file was opened with.

Choose a different destination

  • Save as..., in the File menu, creates a new local file and sends future saves to it.
  • Edit in Drive, on the app bar, creates a Drive file and sends future saves to it.
  • Make a copy, in the File menu, creates another file in Drive.
  • Download, on the app bar (also Download a copy in the File menu), downloads the current PDF while keeping you in the file you were already editing.

Attachments

Attachments... in the File menu lists the files embedded in the PDF. Download one, remove one, or add files of your own; the changes are written when you save.

If a local save or download fails

Check that the device has free space, approve any browser permission prompt, and confirm that downloads are allowed for pdfeditor.co. If saving the current file keeps failing, use Save as... in the File menu or Download on the app bar to create a separate file.

If the original changed somewhere elseTop

The same file can change while you have it open: another person edits the Drive file, or another program updates the local file. PDF Editor checks before overwriting and pauses if it finds a newer version.

Your choices

  • Keep your version. Confirm that you want your edited PDF to replace the other version.
  • Use the newer version. Load the file that changed elsewhere instead of overwriting it.
  • Keep both. Use Save as..., Make a copy, or Download before deciding.
  • Decide later. Dismiss the warning and keep editing. Autosave stays paused for that file, and nothing is overwritten until you decide.

Autosave and recovery draftsTop

PDF Editor protects your work in two ways: by autosaving to the PDF's own file once that is safe to do, and by keeping a recovery draft in this browser on this device.

When the file autosaves

  • A Google Drive PDF you can edit autosaves as you work; no first manual save is needed.
  • A PDF from your computer autosaves after your first manual save, which grants file access or picks the destination.
  • Autosave pauses if the file changed somewhere else. The status beside the filename shows what has been saved.

How recovery drafts work

  • A separate safety copy. When browser storage is available, PDF Editor records the original PDF and your current edits after a short pause. A draft never overwrites your files.
  • Restores after an interruption. If the tab reloads, crashes, or closes unexpectedly, the app can offer or restore the latest unsaved draft. A protected PDF asks for its password again; passwords are never stored.
  • Uses a new Undo baseline. The restored PDF and edits return, but the full step-by-step Undo history doesn't.
  • Can be turned off. File > Save recovery drafts on this device is a checkbox. Untick it to stop new drafts on this device; drafts already saved still restore.

Important

Draft saved to this device means the browser safety copy is current; it doesn't mean the file was saved. Browser data can be cleared, blocked, or run out of space. If recovery is unavailable, keep the tab open and save the PDF before leaving.

Keyboard shortcutsTop

On a Mac, use Cmd where this list shows Ctrl. For the full list, open Help > Keyboard shortcuts in the app, or press Ctrl + /.

  • Open from your computer: Ctrl + O
  • Open from Google Drive: Ctrl + Shift + O
  • Save: Ctrl + S
  • Save as: Ctrl + Shift + S
  • Print: Ctrl + P
  • Find: Ctrl + F
  • Undo: Ctrl + Z
  • Redo: Ctrl + Shift + Z (on Windows and Linux, Ctrl + Y also works)
  • Rename: F2
  • Full screen: Ctrl + Shift + F
  • Close a menu, a dialog, a tool, or an untouched new PDF: Esc

With the page area or toolbar focused (click a page first), single keys work too:

  • Zoom in / out: + / -
  • Fit to page: 0; Actual size: 1
  • Rotate right / left: R / Shift + R
  • Delete the selected pages: Delete

In the Pages sidebar, the arrow keys move between pages, Shift extends the selection, Space toggles a page, Enter shows it, and Alt + Up / Down moves the selected pages.

Privacy and your filesTop

Opening, rendering, editing, and writing the saved PDF happen in your browser.

When data leaves your device

  • Google Drive. A Drive file travels directly between your browser and Google when you choose a Drive action.
  • Recovery drafts and saved signatures. Both stay in this browser on this device.

See the Privacy Policy for complete details.

TroubleshootingTop

The editor does not load

Reload the page once. If the workspace still doesn't appear, a network block, an ad blocker, or a security extension may be stopping a file served by pdfeditor.co. Try a private window to rule out extensions, then update or try another current browser.

The PDF does not open

PDF Editor refuses files larger than 100 MiB and files that aren't PDFs. A damaged PDF may be refused or open with missing pages. If a password prompt keeps returning, the password is wrong for this file; a PDF can have a different password to open than to edit. If you contact Support, include the exact error text, the file size, and the page count.

Text shows as boxes or is missing

Some PDFs refer to fonts they don't contain. PDF Editor substitutes a standard font where it can; the saved file is unchanged by this, and it will look as before in a reader that has the font.

The editor is slow or runs out of memory

Close other memory-heavy tabs and apps, then try again. Scanned pages need far more memory than their file size while they are drawn, and every save rebuilds the PDF in memory. If needed, use Remove other pages... in the Organize pages menu to work on a smaller PDF.

If a Google Drive request failsTop

A Drive open, save, copy, or file-management request can fail because the connection dropped, the sign-in session expired, the wrong account is active, you lost permission, Drive storage is full, or Google returned a temporary error.

What you can do

  • Check your connection and try the action again.
  • Make sure PDF Editor is using the Google account that has access to the file.
  • Reload the app and sign in again if the session may have expired.
  • Use Download on the app bar to keep a local result if saving to Drive is unavailable.

Google Drive download quota exceededTop

Google temporarily limits downloads when a file has been downloaded too many times in a short period. PDF Editor can't override that limit.

What you can do

Wait and try again later, ask the owner to make another copy, or open a different copy of the PDF if one is available. The limit belongs to the Drive file, so changing browsers usually won't help.

Download disabled by the file ownerTop

The owner of a shared Drive file can prevent viewers and commenters from downloading or copying it. PDF Editor respects that setting.

What you can do

Ask the owner for edit access, a downloadable copy, or permission to download. Signing in with another account helps only if that account already has the required access.

File flagged by Google DriveTop

Google may block a PDF it has flagged as malware, spam, or abusive content. PDF Editor doesn't bypass Google's warning or download policy.

What you can do

Open Google Drive directly and review Google's message. If you own the file and believe the flag is wrong, follow Google's available review or download steps. Don't open a file you don't trust.

Local file changed, moved, or became unavailableTop

A recent-file entry can stop working if the PDF was renamed, moved, deleted, or changed by another app, or if the browser lost permission to read it.

What you can do

  • Select Open PDF From Computer and choose the file again.
  • Approve the browser's permission prompt if one appears.
  • If another app changed the file, reopen it to load the latest version or save your current edit under a new name first.
  • Remove a broken recent entry; this doesn't delete the file itself.

View-only PDFsTop

A Google Drive PDF can be view-only when your account has viewer or commenter access but not edit access. You can still edit the PDF in the workspace, but PDF Editor won't overwrite the shared source.

Keep your own version

Use Make a copy in the File menu when it's available, or Save as... in the File menu or Download on the app bar. If the owner disabled downloads and copies, ask them for permission.