⊞
Merge
Combine any number of PDFs into a single document. Arrange the files in the order you want before running, and the pages follow that order exactly.
Features
Nine tools, one page.
Ember PDF opens as a full workspace rather than a cramped popup. Choose a tool and the file picker and options panel rearrange themselves around it.
The toolkit
What each tool does
⊟
Split
Cut a long PDF into smaller documents of a fixed page count. When the split produces several files they arrive together in one zip.
▣
Extract pages
Keep only the pages you name. Ranges are written the way page numbers are printed: 3, 2-5, 1,4,7, 2-4,9, or an open-ended 6-.
↻
Rotate
Turn pages 90, 180 or 270 degrees. Rotation is applied on top of whatever the page already had, so a sideways scan lands upright.
▢
Resize
Scale pages to a different paper size. Content is fitted and centred, and portrait or landscape orientation is preserved rather than forced.
⇩
Compress
Two modes. Lossless re-saves the file and strips metadata, keeping text selectable. Aggressive rasterises every page to JPEG for a much smaller file, and warns you first because selectable text is lost.
◫
PDF to images
Render each page as a PNG or JPG at the quality you choose. Multi-page documents come back as a zip instead of dozens of separate downloads.
◻
Images to PDF
Turn PNG and JPG files into a single PDF, one image per page. Useful for sending a batch of photographed receipts or scans as one document.
☰
Extract text
Pull the readable text out of a PDF and save it as a plain text file, with line breaks reconstructed from the page layout.
How it behaves
Details that save you a second attempt
Never largerIf compressing would actually grow the document, Ember PDF hands back the original and tells you why.
Honest warningsAggressive compression removes selectable text permanently, so the interface says so before it runs, not after.
Zipped batchesAny job that produces more than one file is bundled into a single zip download.
Save allDownloads are staggered slightly, because Firefox silently drops rapid back-to-back saves.
Clean slateSwitching tools clears the file queue on purpose, since files staged for one tool are usually the wrong type for the next.
Responsive on long jobsWork pauses between pages so a large document does not freeze the tab while it runs.
Real error messagesWhen something fails you get the actual reason, not a generic "something went wrong".
Fully offlineThe PDF libraries ship inside the add-on, so nothing is fetched from a CDN and everything works with no connection.
Try it yourself
Nine tools.
Zero uploads.
Ember PDF is free, and installs in a few seconds from the Firefox Add-ons site.
Add to Firefox