Merge PDF
Combine PDFs and reorder pages by dragging. Nothing is uploaded.
Pull embedded images out at their original resolution.
| Extract | Rasterise | |
|---|---|---|
| Gets | The original image objects | A picture of the page |
| Quality | Unchanged | Whatever DPI you choose |
| Includes text | No | Yes, as pixels |
| Includes vectors | No | Yes, as pixels |
| Use for | A photograph placed in the document | A view of the whole page |
If you want the photograph from page 4, extract. If you want a picture of page 4 including its text and layout, rasterise — which is a different tool.
Charts and diagrams produced by software are usually vector artwork — drawing instructions rather than pixels — so there is no image object to extract.
That is good news rather than bad: vector artwork can be lifted at any resolution and re-coloured, which a raster image cannot.
Zoom to 800% to tell them apart. Vector stays crisp at any magnification; raster goes blocky. For vector content, opening the page in a vector editor gives you editable artwork.
A single visible picture is sometimes several image objects: a base image plus a soft mask for transparency, or a large photo tiled into strips by the generating software.
Extraction returns what is in the file, so you may get more pieces than you expected.
Scanned documents are the common case of the opposite — one large image per page, which is exactly what you want if the goal is the scan itself.
Extraction returns the original embedded image objects unchanged at their original resolution. Rasterising renders whole pages to new pictures, including text and vector graphics, at a resolution you choose.
Because it is vector artwork — drawing instructions rather than pixels — so there is no image object to extract. That is better: vector can be lifted at any resolution and recoloured.
A visible image can be several objects — a base image plus a transparency mask, or a large photo tiled into strips by the software that made the PDF. Extraction returns what the file actually contains.
No. JPEGs are copied byte for byte, exactly as they sit in the document. Other formats are decoded and saved as PNG, which is lossless. Either way nothing is re-rendered or downsampled, and the caption tells you which you got.
Extracting cleanly does not grant a licence. Figures in papers and reports are copyrighted; academic quotation with attribution is generally fine, commercial reuse usually needs permission.