diff --git a/main.py b/main.py
index 03a7fbf..da3fb6e 100644
--- a/main.py
+++ b/main.py
@@ -24,6 +24,7 @@ class DocumentSpecs(BaseModel):
     fontsize: int
     paperwidth: int
     paperheight: int
+    ratio: int
     margin: int
     vmargin: int
     extension: str
@@ -36,6 +37,7 @@ class FormatParameters(BaseModel):
     fontsize: int
     paperwidth: int
     paperheight: int
+    ratio: int
     margin: int
     vmargin: int
     extension: str
@@ -130,10 +132,12 @@ async def generer(specs: DocumentSpecs):
         f'--pdf-engine={specs.pdfengine}',
         '-V', f'linkcolor={specs.linkcolor}',
         '-V', f'fontsize={specs.fontsize}pt',
-        '-V', f'geometry:paperwidth={specs.paperwidth / 300}in',
-        '-V', f'geometry:paperheight={specs.paperheight / 300}in',
-        '-V', f'geometry:margin={specs.margin / 300}in',
-        '-V', f'geometry:vmargin={specs.vmargin / 300}in'
+        '-V', f'geometry:paperwidth={round(specs.paperwidth * specs.ratio / 100,-1) / 300}in',
+        '-V', f'geometry:paperheight={round(specs.paperwidth * specs.ratio / 100,-1) / 300}in',
+        '-V', f'geometry:left={specs.margin / 300}in',
+        '-V', f'geometry:right={specs.margin / 300}in',
+        '-V', f'geometry:top={specs.vmargin / 300}in',
+        '-V', f'geometry:bottom={specs.vmargin / 300}in'
     ]
     try:
         logging.info("Dossier courant = " + os.getcwd())
diff --git a/requirements.txt b/requirements.txt
index 8ff15f4..ecd337e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,26 +1,23 @@
 h11~=0.14.0
-pip~=21.3.1
-wheel~=0.37.1
 PyYAML~=6.0
 anyio~=3.6.2
 sniffio~=1.3.0
 click~=8.1.3
 httpcore~=0.16.3
 idna~=3.4
-rfc3986~=1.5.0
 certifi~=2022.12.7
 pandoc~=2.3
 ply~=3.11
 plumbum~=1.8.0
 uvloop~=0.17.0
-fastapi~=0.88.0
-starlette~=0.22.0
+fastapi~=0.91.0
+starlette~=0.24.0
 pydantic~=1.10.2
 websockets~=10.4
 uvicorn~=0.20.0
 httptools~=0.5.0
 watchfiles~=0.18.1
 httpx~=0.23.1
-setuptools~=60.2.0
+setuptools~=67.2.0
 pypandoc~=1.10
 Wand~=0.6.10
\ No newline at end of file
diff --git a/styles/lcm/format_parameters.json b/styles/lcm/format_parameters.json
index fbf27d5..362e38c 100644
--- a/styles/lcm/format_parameters.json
+++ b/styles/lcm/format_parameters.json
@@ -6,6 +6,7 @@
     "fontsize": 12,
     "paperwidth": 2480,
     "paperheight": 3507,
+    "ratio": 100,
     "margin": 248,
     "vmargin": 350,
     "extension": "pdf"
@@ -17,6 +18,7 @@
     "fontsize": 12,
     "paperwidth": 2550,
     "paperheight": 3300,
+    "ratio": 100,
     "margin": 255,
     "vmargin": 330,
     "extension": "pdf"
@@ -28,6 +30,7 @@
     "fontsize": 16,
     "paperwidth": 1200,
     "paperheight": 1200,
+    "ratio": 100,
     "margin": 120,
     "vmargin": 120,
     "extension": "jpg"
@@ -39,6 +42,7 @@
     "fontsize": 16,
     "paperwidth": 1080,
     "paperheight": 1920,
+    "ratio": 100,
     "margin": 108,
     "vmargin": 192,
     "extension": "jpg"
@@ -50,6 +54,7 @@
     "fontsize": 16,
     "paperwidth": 735,
     "paperheight": 1102,
+    "ratio": 100,
     "margin": 75,
     "vmargin": 110,
     "extension": "jpg"
@@ -61,6 +66,7 @@
     "fontsize": 16,
     "paperwidth": 2560,
     "paperheight": 1920,
+    "ratio": 100,
     "margin": 256,
     "vmargin": 192,
     "extension": "pdf"
@@ -72,6 +78,7 @@
     "fontsize": 16,
     "paperwidth": 2560,
     "paperheight": 1440,
+    "ratio": 100,
     "margin": 256,
     "vmargin": 144,
     "extension": "pdf"