1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
|
# Reading PDF Annotations
PDF 2.0 defines the following annotation types:
* Text
* Link
* FreeText
* Line
* Square
* Circle
* Polygon
* PolyLine
* Highlight
* Underline
* Squiggly
* StrikeOut
* Caret
* Stamp
* Ink
* Popup
* FileAttachment
* Sound
* Movie
* Screen
* Widget
* PrinterMark
* TrapNet
* Watermark
* 3D
* Redact
* Projection
* RichMedia
In general, annotations can be read like this:
```python
from pypdf import PdfReader
reader = PdfReader("annotated.pdf")
for page in reader.pages:
if "/Annots" in page:
for annotation in page["/Annots"]:
obj = annotation.get_object()
print({"subtype": obj["/Subtype"], "location": obj["/Rect"]})
```
Examples of reading three of the most common annotations:
## Text
```python
from pypdf import PdfReader
reader = PdfReader("example.pdf")
for page in reader.pages:
if "/Annots" in page:
for annotation in page["/Annots"]:
subtype = annotation.get_object()["/Subtype"]
if subtype == "/Text":
print(annotation.get_object()["/Contents"])
```
## Highlights
```python
from pypdf import PdfReader
reader = PdfReader("example.pdf")
for page in reader.pages:
if "/Annots" in page:
for annotation in page["/Annots"]:
subtype = annotation.get_object()["/Subtype"]
if subtype == "/Highlight":
coords = annotation.get_object()["/QuadPoints"]
x1, y1, x2, y2, x3, y3, x4, y4 = coords
```
## Attachments
```python
from pypdf import PdfReader
reader = PdfReader("example.pdf")
attachments = {}
for page in reader.pages:
if "/Annots" in page:
for annotation in page["/Annots"]:
subtype = annotation.get_object()["/Subtype"]
if subtype == "/FileAttachment":
fileobj = annotation.get_object()["/FS"]
attachments[fileobj["/F"]] = fileobj["/EF"]["/F"].get_data()
```
|