In the world of digital documents, extracting structured data from PDFs is a critical but often challenging task. Recognizing these challenges, VeryPDF offers custom development services for table extraction, building on powerful open-source libraries such as pdfplumber, pdfminer, and their proprietary technologies. Whether you're dealing with tabular data, detailed annotations, or complex layouts, VeryPDF's tailored solutions ensure seamless data extraction that perfectly fits your specific needs.
About VeryPDF's Table Extraction Services
VeryPDF specializes in providing bespoke solutions for businesses and developers seeking efficient and accurate PDF data extraction. With expertise in modifying and extending the functionality of open-source projects like pdfplumber and pdfminer, VeryPDF bridges the gap between raw PDF data and actionable insights.
Features of VeryPDF’s Custom Table Extraction Solutions
- Enhanced Accuracy for Table Parsing
Leveraging the robust capabilities of libraries such as pdfplumber, VeryPDF refines table extraction to identify and capture even the most complex tabular structures, including nested tables, merged cells, and irregular layouts. - Dynamic Content Handling
With pdfminer’s modular architecture, VeryPDF can customize data extraction workflows to handle text, images, and annotations while ensuring support for multi-language documents, including CJK and vertical writing scripts. - Precise Positional Data
Need exact locations, dimensions, or formatting details of your data? VeryPDF extracts positional information such as font styles, colors, and character matrix for advanced processing. - Custom Workflow Integration
Whether you’re integrating table extraction into a larger enterprise system or building standalone tools, VeryPDF adapts its solutions to fit your specific workflows, ensuring seamless operation. - Web-Based Table Extraction
VeryPDF’s Table Extractor Online Tool empowers users to perform table extractions directly in their browser, making it easy to process PDFs without installing additional software.
Capabilities of pdfplumber and pdfminer
Both libraries are integral to VeryPDF's solutions, offering foundational features that can be tailored for advanced use cases:
- pdfplumber:
- Extract detailed information about each PDF element (characters, lines, images).
- Robust table extraction with visual debugging for precise adjustments.
- Ideal for machine-generated PDFs.
- pdfminer.six:
- Comprehensive text analysis with support for text position, font, and layout.
- Modular design for easy extension and integration.
- Advanced support for encryption, compressions, and interactive forms.
Objects
Each instance of pdfplumber.PDF and pdfplumber.Page provides access to several types of PDF objects, all derived from pdfminer.six PDF parsing. The following properties each return a Python list of the matching objects:
- .chars, each representing a single text character.
- .lines, each representing a single 1-dimensional line.
- .rects, each representing a single 2-dimensional rectangle.
- .curves, each representing any series of connected points that pdfminer.six does not recognize as a line or rectangle.
- .images, each representing an image.
- .annots, each representing a single PDF annotation (cf. Section 8.4 of the official PDF specification for details)
- .hyperlinks, each representing a single PDF annotation of the subtype Link and having an URI action attribute
Each object is represented as a simple Python dict, with the following properties:
char properties
|
Property |
Description |
|
page_number |
Page number on which this character was found. |
|
text |
E.g., "z", or "Z" or " ". |
|
fontname |
Name of the character's font face. |
|
size |
Font size. |
|
adv |
Equal to text width * the font size * scaling factor. |
|
upright |
Whether the character is upright. |
|
height |
Height of the character. |
|
width |
Width of the character. |
|
x0 |
Distance of left side of character from left side of page. |
|
x1 |
Distance of right side of character from left side of page. |
|
y0 |
Distance of bottom of character from bottom of page. |
|
y1 |
Distance of top of character from bottom of page. |
|
top |
Distance of top of character from top of page. |
|
bottom |
Distance of bottom of the character from top of page. |
|
doctop |
Distance of top of character from top of document. |
|
matrix |
The "current transformation matrix" for this character. (See below for details.) |
|
mcid |
The marked content section ID for this character if any (otherwise None). Experimental attribute. |
|
tag |
The marked content section tag for this character if any (otherwise None). Experimental attribute. |
|
ncs |
TKTK |
|
stroking_pattern |
TKTK |
|
non_stroking_pattern |
TKTK |
|
stroking_color |
The color of the character's outline (i.e., stroke). |
|
non_stroking_color |
The character's interior color. |
|
object_type |
"char" |
Note: A character’s matrix property represents the “current transformation matrix,” as described in Section 4.2.2 of the PDF Reference (6th Ed.). The matrix controls the character’s scale, skew, and positional translation. Rotation is a combination of scale and skew, but in most cases can be considered equal to the x-axis skew. The pdfplumber.ctm submodule defines a class, CTM, that assists with these calculations. For instance:
from pdfplumber.ctm import CTM
my_char = pdf.pages[0].chars[3]
my_char_ctm = CTM(*my_char["matrix"])
my_char_rotation = my_char_ctm.skew_x
line properties
|
Property |
Description |
|
page_number |
Page number on which this line was found. |
|
height |
Height of line. |
|
width |
Width of line. |
|
x0 |
Distance of left-side extremity from left side of page. |
|
x1 |
Distance of right-side extremity from left side of page. |
|
y0 |
Distance of bottom extremity from bottom of page. |
|
y1 |
Distance of top extremity bottom of page. |
|
top |
Distance of top of line from top of page. |
|
bottom |
Distance of bottom of the line from top of page. |
|
doctop |
Distance of top of line from top of document. |
|
linewidth |
Thickness of line. |
|
stroking_color |
The color of the line. See docs/colors.md for details. |
|
non_stroking_color |
The non-stroking color specified for the line’s path. See docs/colors.md for details. |
|
mcid |
The marked content section ID for this line if any (otherwise None). Experimental attribute. |
|
tag |
The marked content section tag for this line if any (otherwise None). Experimental attribute. |
|
object_type |
"line" |
rect properties
|
Property |
Description |
|
page_number |
Page number on which this rectangle was found. |
|
height |
Height of rectangle. |
|
width |
Width of rectangle. |
|
x0 |
Distance of left side of rectangle from left side of page. |
|
x1 |
Distance of right side of rectangle from left side of page. |
|
y0 |
Distance of bottom of rectangle from bottom of page. |
|
y1 |
Distance of top of rectangle from bottom of page. |
|
top |
Distance of top of rectangle from top of page. |
|
bottom |
Distance of bottom of the rectangle from top of page. |
|
doctop |
Distance of top of rectangle from top of document. |
|
linewidth |
Thickness of line. |
|
stroking_color |
The color of the rectangle's outline. See docs/colors.md for details. |
|
non_stroking_color |
The rectangle’s fill color. See docs/colors.md for details. |
|
mcid |
The marked content section ID for this rect if any (otherwise None). Experimental attribute. |
|
tag |
The marked content section tag for this rect if any (otherwise None). Experimental attribute. |
|
object_type |
"rect" |
curve properties
|
Property |
Description |
|
page_number |
Page number on which this curve was found. |
|
pts |
A list of (x, top) tuples indicating the points on the curve. |
|
path |
A list of (cmd, *(x, top)) tuples describing the full path description, including (for example) control points used in Bezier curves. |
|
height |
Height of curve's bounding box. |
|
width |
Width of curve's bounding box. |
|
x0 |
Distance of curve's left-most point from left side of page. |
|
x1 |
Distance of curve's right-most point from left side of the page. |
|
y0 |
Distance of curve's lowest point from bottom of page. |
|
y1 |
Distance of curve's highest point from bottom of page. |
|
top |
Distance of curve's highest point from top of page. |
|
bottom |
Distance of curve's lowest point from top of page. |
|
doctop |
Distance of curve's highest point from top of document. |
|
linewidth |
Thickness of line. |
|
fill |
Whether the shape defined by the curve's path is filled. |
|
stroking_color |
The color of the curve's outline. See docs/colors.md for details. |
|
non_stroking_color |
The curve’s fill color. See docs/colors.md for details. |
|
dash |
A ([dash_array], dash_phase) tuple describing the curve's dash style. See Table 4.6 of the PDF specification for details. |
|
mcid |
The marked content section ID for this curve if any (otherwise None). Experimental attribute. |
|
tag |
The marked content section tag for this curve if any (otherwise None). Experimental attribute. |
|
object_type |
"curve" |
Derived properties
Additionally, both pdfplumber.PDF and pdfplumber.Page provide access to several derived lists of objects: .rect_edges (which decomposes each rectangle into its four lines), .curve_edges (which does the same for curve objects), and .edges (which combines .rect_edges, .curve_edges, and .lines).
image properties
Note: Although the positioning and characteristics of image objects are available via pdfplumber, this library does not provide direct support for reconstructing image content. For that, please see this suggestion.
|
Property |
Description |
|
page_number |
Page number on which the image was found. |
|
height |
Height of the image. |
|
width |
Width of the image. |
|
x0 |
Distance of left side of the image from left side of page. |
|
x1 |
Distance of right side of the image from left side of page. |
|
y0 |
Distance of bottom of the image from bottom of page. |
|
y1 |
Distance of top of the image from bottom of page. |
|
top |
Distance of top of the image from top of page. |
|
bottom |
Distance of bottom of the image from top of page. |
|
doctop |
Distance of top of rectangle from top of document. |
|
srcsize |
The image original dimensions, as a (width, height) tuple. |
|
colorspace |
Color domain of the image (e.g., RGB). |
|
bits |
The number of bits per color component; e.g., 8 corresponds to 255 possible values for each color component (R, G, and B in an RGB color space). |
|
stream |
Pixel values of the image, as a pdfminer.pdftypes.PDFStream object. |
|
imagemask |
A nullable boolean; if True, "specifies that the image data is to be used as a stencil mask for painting in the current color." |
|
mcid |
The marked content section ID for this image if any (otherwise None). Experimental attribute. |
|
tag |
The marked content section tag for this image if any (otherwise None). Experimental attribute. |
|
object_type |
"image" |
Why Choose VeryPDF?
- Custom Modifications
Unlike generic tools, VeryPDF can enhance the functionalities of open-source libraries to meet your unique requirements, offering unmatched flexibility. - Expertise and Experience
Backed by decades of experience in PDF processing, VeryPDF ensures that your table extraction tasks are handled with the highest precision. - Scalability
From one-off projects to enterprise-level integrations, VeryPDF’s solutions are designed to scale with your needs. - Seamless Support
VeryPDF provides end-to-end support, including initial consultation, development, and ongoing maintenance.
Try VeryPDF’s Table Extraction Tool Today!
Get started with table extraction by trying out VeryPDF’s Table Extractor Online Application. Explore how easy it is to extract structured data from your PDFs and experience the difference VeryPDF can make.
For tailored PDF table extraction services that ensure precision, efficiency, and scalability, trust VeryPDF. Contact us today to discuss your requirements!